Synonym of questionable

Alternative for questionable

Adjective

Doubtful in terms of truth or validity
doubtful debatable dubious equivocal uncertain arguable suspect moot contentious disputable iffy unsettled unsure controversial controvertible doubtable dubitable unconfirmed undecided unprovable unproven unreliable unresolved unverified apocryphal borderline in dispute in doubt issuable marginal negotiable unclear undefined disputed indefinite indeterminate spurious ambiguous contingent cryptic enigmatic flimsy hypothetical indecisive obscure occult vague in question open to doubt open to question not definite not obvious open to discussion under examination under advisement dodgy problematic problematical unsound unsubstantiated suspicious shaky unsupported open to debate chancy fishy puzzling indistinct inconclusive nebulous shady hazy up in the air queer undependable weak speculative undetermined imprecise unintelligible false open unfounded unknown contestable conjectural confused tenuous groundless inexplicit clouded enigmatical inexact untrue perplexing baseless unjustified untrustworthy uncorroborated unreasonable mootable foundationless ill-founded specious unconvincing erroneous without basis without foundation inaccurate unwarranted dicey fuzzy contested unestablished open to argument ungrounded pending invalid nonvalid at issue fallible paradoxical confusing fallacious opaque touch and go up for discussion fabricated misguided misleading ambivalent arcane sketchy clear as dishwater wrong untested unattested unpredictable yet to be decided not backed up by evidence ill-defined imaginary unjustifiable idle deceptive risky disreputable in the balance in limbo betwixt and between the jury's out bone of contention vain hairy between sixes and sevens vexed riddling between rock and hard place suppositious misinformed tenebrous blurred gratuitous bottomless abstruse muddy illogical mystic mysterious inscrutable unauthenticated trumped-up gray grey implausible up for grabs muzzy clear as mud fake rocky tricky unconcluded assumed exceptionable debated incorrect mistaken defective contended subject to debate unlikely suppositive delicate murky presumed empty unfinished foggy flakey pseudo unstable sham flaky uncalled-for muddled difficult mixed cloudy awkward woolly wide of the mark off-target precarious hot-button trumped up bewildering gnomic oracular incomplete not yet established unreal equivocating imperfect double-edged wooly inadequate Delphic amphibological insecure neither one thing nor the other neither fish nor fowl unsafe polysemous polysemic polysemantic tentative multivocal hinky challenging fictitious mythical legendary concerned troubled worried anxious apprehensive disquieted unclassifiable improbable reasonless untenable uncanonical sub judice peripheral frontier bordering open to suspicion unprovoked unascertained unapt far from certain a controversial subject a live issue on ice a moot point made-up without substantiation without merit unsubstantial unforeseeable incalculable far-fetched unauthorized a matter of opinion not validated untruthful mendacious off-base loose on the back burner under suspicion on thin ice hanging by a thread generalized rough unsolved unanswered chimerical illusory irrational invented ungenuine fictional allonymous counterfeit bleary disputatious not kosher uncalled for not backed up causeless in contention thorny ticklish ongoing sticky knotty taxing open for discussion yet to be settled not yet settled divisive sensitive polemical superficial approximate remote dim shadowy without justification without reason without cause unauthorised provocative tendentious emotive polemic not reliable not dependable cursory debateable without explanation unspecified generalised non-specific obfuscatory perfunctory hot heated notorious troublesome fractious touch-and-go hard to believe unproved much debated under discussion oblique theoretical in no man's land unsatisfying unsatisfactory resolving nothing unfateful uneventful proving nothing lacking deficient periphrastic prevaricating circumlocutory circuitous academic contradictory elusive blurry roundabout fuliginous duplicitous leaving matters open suppositional supposed deep elliptical dark elliptic impressionistic unexplicit shifty putative still open to question left hanging still open to doubt imagined two-edged academical notional conjectured theoretic falsified concocted presupposed provisory made up casual assumptive stochastic postulated conditional conjecturable refutable guessed presumptive proposed pretending

Adjective

Not likely to be true or accurate
unlikely doubtful improbable implausible unconvincing dubious shaky doubtable dubitable shonky far-fetched hard to believe incredible unbelievable fanciful preposterous flimsy fantastic unthinkable inconceivable unrealistic unimaginable absurd ridiculous hard to swallow suspect fishy impossible cock-and-bull not likely beyond belief difficult to believe debatable scarcely credible unapt fantastical tall incredulous remote laboured unconceivable uncompelling weak iffy labored unsubstantial cock and bull hard to take outlandish exaggerated strained elaborate rare thin mind-boggling too much extravagant beyond the bounds of possibility fabricated false uncertain outrageous unimagined extraordinary astonishing distorted illogical farfetched incongruous highly unlikely overdone contrived bizarre incoherent equivocal staggering faint slight slim strange incogitable forced far out outside chance poor out of the ordinary full of it won't wash for the birds won't hold water full of holes unexpected unreasonable unnatural obscure reachy puzzling problematic unplausible hokey fabulous unsound untoward contrary unheard-of specious unpersuasive speculative undecided unconfirmed unsettled unsure misleading overblown trifling feeble lame caricatural artificial less likely sensational embellished untrue dishonest suspicious untruthful unsatisfactory inadequate pathetic transparent shallow ponderous ineffectual excessive unimpressive long shot fat chance nonsensical shady spectacular ludicrous laughable hyperbolic farcical overdramatic high-flown sensationalized on thin ice touch-and-go untrustworthy embroidered disputable histrionic arguable unreliable undependable amazing unreal overstated inflated blown up harebrained infeasible reaching half-baked not convincing flakey kooky scatterbrained flaky cockeyed lamebrained screwy cockamamie phoney phony complicated uncivilised inordinate uncivilized unconscionable crazy sensationalised extortionate barbarous mind-blowing eye-popping past belief open to doubt jaw-dropping impracticable hundred-to-one outside highly coloured not expected unheard of marginal off slim and none last straw out of bounds negligible nominal isolated slender dicey fractional distant frail tiny meager small fragile inconsiderable meagre imperceptible diminished minute astounding breathtaking untenable phenomenal insupposable uncredible rings phony not in the least likely not able to hold water out of the question

Adjective

Likely to be dishonorable or morally suspect
doubtful dubious irregular odd queer suspect suspicious dark disreputable murky mysterious shifty strange unsavory unsavoury dodgy fishy funny iffy shady under suspicion potentially dishonest potentially illegal not quite right dishonourable dishonest corrupt dishonorable unscrupulous untrustworthy shonky underhand slippery crooked unprincipled deceitful scandalous peculiar disputable bent duplicitous devious debatable dubitable doubtable equivocal problematical unusual guileful shaky problematic fraudulent double-dealing tricky curious weird bizarre unnatural abnormal criminal unethical extraordinary remarkable anomalous uncommon different singular treacherous freakish not kosher underhanded aberrant two-faced eerie unreliable creepy freak bizarro sneaky spooky unco disgraceful rum nefarious uncanny shameful crafty atypical unfamiliar unexpected puzzling seedy mystifying outlandish perplexing eccentric infamous baffling offbeat unconventional untypical deviant furtive wicked inglorious sly rare base false quaint incongruous unaccountable quirky evil wacky kooky screwy crazy wild undependable erratic whacky funky weirdo kookie villainous kinky queerish out of the ordinary oddball illegal discreditable unlawful ignominious far-out opprobrious out of the way amoral off-the-wall louche off-kilter way-out fly-by-night notorious out-of-the-way off the wall spaced-out sharp sketchy not to be trusted immoral shoddy exceptional off-centre unrespectable ruthless cranky vile iniquitous unworthy freaky uncustomary bad droll idiosyncratic outré contemptible despicable insincere ignoble degenerate vicious not to be depended on fair-weather not dependable two-timing rogue deceptive shocking fast snide unlikely uncertain venal ambiguous outrageous Janus-faced reprobate ridiculous unorthodox mean exploitative unconscionable conscienceless improper corrupted traitorous monstrous irresponsible unfaithful uncharacteristic unique sinful of dubious character unaccustomed trustless hateful heinous shameless shy low-down unconscientious flakey zany wacko sinister flaky unfair self-seeking scheming dastardly out of line licentious dissolute sorry scurvy dirty foreign shadowy macabre cryptic off tarnished improbable implausible far-fetched secret out-there disquieting surprising exceeding especial unwonted aberrated unhinged touched outre demented mad unbalanced irrational extraordinaire preternatural dilly phenomenal delusive left-field not trustworthy pseudo potentially dangerous thick potentially false suspected unclear open thin incredible unsure unbelievable whimsical nutty capricious untrusty untrue disloyal fickle faithless funny-looking mysterious-looking strange-looking quizzical beat roguish characteristic slimy unprofessional cowboy cockeyed fink conniving open to suspicion corruptible grafting defrauding swindling buyable atrocious abominable cheating unsafe far out out in left field way out funny peculiar off-center loathsome malfeasant knavish cunning wrongdoing odious detestable untruthful lying suborned indirect cutthroat Machiavellian appalling egregious not to be relied upon flagitious disgusting terrible dreadful perfidious casuistic selfish degrading recreant petty degraded mercenary wrongful arrant unspeakable unforgivable filthy phony exceptionable ill-famed beastly farfetched perverse caitiff foul unhealthy ill-reputed miscreant rotten offensive phoney depraved debauched cruel brutal merciless rings untrue debased pitiless unfeeling rancorous scoundrelly self-indulgent unkind inhumane vitiated disparaging delinquent callous forbidding errant hard-hearted libertine mean-spirited unrighteous bloodthirsty heartless wrathful malevolent demonic scrofulous unpleasant black-hearted evil-minded vengeful felonious contemptuous grisly nasty pernicious cold-blooded savage tyrannical barbarous squalid incorrigible scornful morally wrong maleficent objectionable decadent brutish defiled despiteful malicious ungodly bestial sadistic inhuman harsh virulent lawless profligate wrong inexorable wanton perverted vindictive gruesome disdainful spiteful of doubtful honesty open to doubt open to question won't wash too much low rascally reprehensible disorderly of bad reputation seamy sleazy unwholesome pitiable beggarly cheap abject sordid lowly lewd derogatory libidinous no good in bad in low esteem in the doghouse inexplicable surreal unparalleled anomalistic scarce inconceivable ludicrous nonstandard off-base inscrutable off-color unheard of like nothing on earth

Adjective

Obscene or offensive in nature
rude vulgar coarse dirty filthy crude lewd gross obscene foul offensive improper impure indecorous disgusting salacious base smutty crass tasteless raunchy inappropriate risqué debased immoral naughty indecent indelicate saucy cheap immodest racy impolite unsavoury unsavory vile profane taboo hard-core sordid suggestive lecherous explicit uncivil uncouth distasteful profligate repulsive ignoble low uncultivated uncultured unrefined foul-mouthed libidinous licentious malicious nasty rakish scandalous inelegant odious randy scurrilous bawdy colorful colourful ribald rough shameless unclean adult blue grimy grubby in bad taste lascivious mucky off-color off colour wanton fruity gamy low-down-and-dirty near the knuckle nudge-nudge spicy unchaste unvirtuous X-rated common illiberal incult insensible lowbred lowbrow raffish roughneck rugged unpolished pornographic wicked unseemly erotic earthy arousing loose sexy titillating porny locker-room gamey trashy raw off-colored salty off unprintable gutter stag porno lustful lusty unconventional libertine fast incontinent near the bone ill-bred rough-hewn boorish scatological scatologic Rabelaisian prurient churlish loutish ill-mannered steamy discourteous broad unmannerly porn unsophisticated uncivilized obnoxious graceless mean uncivilised brutish bad-mannered natural native juicy unprocessed untreated sleazy abusive repugnant ungentlemanly tactless unladylike unacceptable contemptible provocative undressed oafish depraved blunt philistine blasphemous objectionable disagreeable ignorant close to the bone unwholesome unpleasant unfinished beyond the pale reprehensible undesirable shocking carnal sensual loud rustic unbecoming tacky sick exceptionable Fescennine indiscreet outrageous primitive unprepared rank lubricious low-minded abhorrent off-colour shady deplorable displeasing unwelcome insufferable intolerable censurable vulgarian concupiscent gruff degenerate uneducated ungracious hot out of line despicable dishonourable dishonorable untoward revolting foulmouthed basic scabrous soft-core sexual unsuitable barbaric cloddish bad sickening skin rascally ungraceful mature malodorous Cyprian perverse unfit tawdry organic loathly unmilled insupportable unsatisfactory in poor taste disgustful upsetting unwanted goatish brusque curt barbarian out of order inconsiderate uninhibited disreputable harsh yobbish gaudy unscrupulous insensitive undignified unprincipled corrupt detestable repellent hard villainous provincial low-down plebby parochial awkward unworthy lowdown and dirty barbarous unfitting nauseating unrestrained incorrect inapposite inapt wrong gruesome outlandish debauched inept incongruous unhappy amiss unapt infelicitous malapropos dissolute sexually explicit unpurified ithyphallic mannerless unworked shameful out of place unmannered ungodly lurid poor out of keeping purple untouched unbearable affronting insulting whole page-three degrading out of the way in the raw in the rough simple thoughtless lumpish obtuse gauche embarrassing ungallant clumsy lubricous satyric passionate itchy horny hypersexual unlettered unheard-of dysphemistic risque grody illicit ordinary unbefitting homespun exploitative corrupting barro daring undecorous ridiculous sketchy untactful unblushing callow Philistine plebeian agrestic inurbane undiplomatic bizarre full-frontal vicious sooty scurvy slippery sneaking fractious profanatory sizzling tempting seductive ill-advised discreditable exciting lively stimulating entertaining rogue devilish execrable wretched snide ignominious currish paltry vernacular illiterate low-born corporeal voluptuous fleshly libellous libelous backward savage immature common as muck shoddy toey disorderly XXX amoral sly rowdy ruffian dirty-minded baseborn general tough farmyard angular troglodytic base-minded abject groveling grown up unrighteous unequitable unrightful unjust wrongful disrespectful barnyard excessive clodhopping slobbish dour severe brutal bluff brash low-down and dirty rough and ready seamy seedy forbidding fierce stern bearish stiff austere roughcast grim fresh sexually suggestive unfiltered unsettling vilifying colloquial vituperative derisive unutterable loud-mouthed grovelling in the gutter cruel untutored intimidating louring grievous steely stark inhuman derogatory dishonest low-bred flashy garish unstained unfashioned flinty onerous ungentle heavy artless unceremonious bitter hardhanded oppressive unwrought undeveloped unmodified intact impudent hurtful impertinent insolent trailer-park dubious suspicious notorious suspect murderous lowering unconditioned in its natural state ostentatious flash showy wounding provoking slighting crooked meretricious naff tatty hardened kitsch vexing noisome dodgy funny iffy stupid ornate useless hideous pretentious foolish unsightly unclassy trivial artificial unlovely makeshift wild dissipated incorrigible cheap and nasty roguish abandoned scoundrelly warped unregenerate degraded decadent rakehell perverted demoralized jackleg rakehelly knavish sinful demoralised reprobate appalling loathsome unpalatable plain rebarbative hateful dislikable frightful horrible noxious dreadful horrid irritating inadmissible opprobrious nauseous awful invidious ghastly annoying terrible inexpedient ill-favoured bogging poison beastly sick-making ill-favored off-putting

Adjective

Unconvincing from a logical perspective
weak implausible preposterous tenuous unconvincing untenable dubious flawed improbable irrational unbelievable unpersuasive unreasonable vague absurd contradictory doubtful farfetched far-fetched faulty feeble flimsy illogical inadequate inconclusive incredible lame ludicrous nebulous nonsensical poor suspect unlikely unsatisfactory unsound unsubstantiated false fantastic fishy groundless hollow impossible inconceivable incongruous indefensible invalid irreconcilable obscure puzzling senseless shaky sketchy specious spurious unsupportable unsustainable airy fallacious fatuous illegitimate inconsequent inconsequential nonrational nutty pathetic problematic reachy slight thin unfounded unimpressive unreasoned unreasoning vain wacky full of holes off the wall self-contradictory won't hold water won't wash insubstantial insufficient shallow negligible fragile defective unreliable unspecific insignificant hazy ungrounded superficial threadbare indeterminate indefinite fallible unsupported sophistic wrong unapt iffy unbacked casuistic dodgy vapid unsubstantial meagre flat meager weak-kneed ill-founded incorrect incoherent stupid foolish silly erroneous inconsistent unscientific unjustifiable capricious erratic reasonless mad perverse idiotic insane crazy ridiculous off beam way out without basis without foundation not making sense quirky vacant bad-tempered stroppy thoughtless loose arbitrary ill-tempered unwise unthinking injudicious mindless brainless all wet wild full of hot air laughable demented counterintuitive meaningless kooky loony ill-conceived off-the-wall ill-thought-out not well thought out unjustified sophistical imbecilic inane unproved irrelevant unconnected daft screwy barmy beyond belief cockeyed not following beyond the bounds of possibility inaccurate bad imprecise distorted imperfect impaired amiss debased sick inexact botched rank unretentive frail malformed injured tainted blamable leaky deficient blemished unfit confused incomplete broken-down warped adulterated cracked awry lemon maimed marred below par

Adjective

Not up to the required standard or quality
unacceptable dissatisfactory suboptimal subpar substandard unsatisfactory unseemly deficient inferior deplorable disagreeable disgraceful displeasing distasteful exceptionable impermissible improper inadequate inadmissible inappropriate insupportable intolerable mediocre objectionable obnoxious offensive undesirable unsuitable wanting abject amateurish awful bad dismal dreadful imperfect insufferable insufficient lousy poor reprehensible terrible unimpressive woeful wretched abominable abysmal appalling atrocious contemptible cruddy crummy diabolical dire dodgy dubious execrable faulty hopeless horrible lame lamentable laughable low meager meagre nasty pathetic pitiable pitiful repugnant rotten shoddy sorry stinking unreasonable cheapo condemnable crude crumby damnable defective disappointing disastrous garbage gross grotty horrendous horrid indefensible irremediable loathsome miserable odious off out paltry punk rubbishy sad scurrilous stinky tatty trashy vile wack worthless wrong bush inacceptable reject unappealing uninviting low-grade second-rate below average below standard under par second rate third-rate bush-league not up to scratch not up to snuff not up to standard poor quality below par half-baked less-than-stellar out of order second-class tenth-rate not on not up to par low-quality poor-quality beyond the pale God-awful two-bit of low quality of poor quality won't do from hunger not cricket over the fence not quite the done thing doubtful ropy bodger iffy not up to much not much cop sour rubbish ill cheap duff junky shabby unjustifiable pants unworthy useless unsound outrageous coarse low-rent inexcusable frightful schlocky bargain-basement a load of pants unpardonable unforgivable bum regrettable poxy direful flawed common schlock weak unjustified sub-par unwarrantable scandalous base cheapjack blameworthy egregious junk unwarranted leaving much to be desired cut-rate subnormal dime-a-dozen jerry-built average cheesy lacking indifferent lemon middling ordinary unconscionable uncalled for el cheapo unexceptional pedestrian censurable tawdry dishonourable distressing sleazy gimcrack trumpery the pits excessive dishonorable unprovoked vulgar shameful poorer downmarket inexpiable culpable rude remiss shocking tinny detestable disreputable hack ignoble discreditable good-for-nothing déclassé opprobrious chronic degrading impolite unsatisfying indiscreet without justification unjust unspeakable indelicate gratuitous crass unfortunate insulting no good not good enough careless immoderate half-pie grubby dirty groundless rough cheap and nasty iniquitous tasteless low-end baseless unfounded incompetent sickening despicable revolting ignominious tacky humiliating disgusting untenable without cause not acceptable without reason a bit much senseless preposterous unrefined flimsy damaged calamitous very bad uncalled-for grim piss-poor sucky unfair uncouth tactless irregular unnecessary tinhorn beastly undiplomatic no great shakes negligent grievous for the birds unsustainable hateful sick disrespectful poorly harmful pits shaky too much piddling trifling indecorous derogatory discourteous sinful negligible hurtful invalid ill-founded inexpert heartbreaking provocative impudent impertinent affronting insolent inglorious wounding shy trivial minimal illogical horrifying abhorrent amiss scummy scurvy ratty scabby mean provoking slighting wicked blamable criminal absurd specious implausible a bit thick unpleasant insignificant uncivil vexing unmannerly unbearable mournful irrational repulsive gruesome inept out of line impaired valueless feeble upsetting end-of-the-pier indecent unwelcome downer bummer godawful failing fallacious weak sauce bereft scant strictly for the birds minor-league minor league in bad taste small potatoes of a sort not satisfying out of sorts off-colour crook off colour inordinate undue extreme below the belt not done unskilful unarguable undefendable refutable slovenly uncomfortable ineffectual incorrect out of turn over-the-top dissatisfying very great unhappy infamous desperate naff commonplace ropey dilapidated puny melancholy sneaking needless injudicious broken criticizable unpermissible unallowable not the done thing tragic repellant repellent stupid shady unrespectable louche notorious not cutting it disturbing disconcerting disquieting thin yucky second-best unprincipled monstrous ridiculous foolish off-color overwhelming dolorous afflictive shlocky hideous ghastly unsightly sordid godforsaken seedy shlock blah cheapie less than ideal underwhelming cheap-jack immoral heinous second class raunchy icky diddly grody bad news grungy not good erroneous not the best hellish rancid rebarbative disgustful hellacious loathly not quite the thing unbecoming arbitrary run down down at heel anticlimactic found wanting not okay insubstantial inconsiderable too little a bit off over the top unbefitting unceremonious unfulfilling demeaning undignified unladylike unfitting ungentlemanly bathetic uninteresting ineffective leaving a lot to be desired craptacular debasing shaming belittling lowering cheapening mortifying not all it's cracked up to be falling short disillusioning untoward beyond contempt abusive annoying irritating OTT lowbrow exasperating graceless personal galling embarrassing disparaging contemptuous nauseating gaudy ungrounded unmerited errant lowbred bizarre sketchy patchy incomplete erring short absent unfinished missing restricted scarce limited needing unpolished reproachable scanty omitted empty gone unfulfilled less devoid cooked away needed destitute bankrupt deprived delinquent blameable reprovable burned out in default cut off out of gas not up to expectations too little too late demeritorious guilty unholy at fault

Antonym of questionable

questionable Idiom, Proverb

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