Synonym of know it all


(informal) A highly academic or studious person
egghead highbrow intellectual academic intellect sage boffin bookworm brainbox brainiac brains Einstein geek genius intellectualist mastermind nerd polymath prodigy scholar thinker whizz wizard bluestocking brain expert longhair maven bookish person bright spark double-dome clever clogs walking encyclopedia rocket scientist wonk doubledome grind swot statto trainspotter anorak spod Poindexter propeller head alpha geek professor don savant academician pundit master philosopher teacher authority fellow lecturer researcher doctor whiz woman of letters man of letters specialist tutor pandit instructor maestro mind learned person educator pedagogue pedagog fundi university teacher scientist guru bookman intelligentsia lector acca buff Brahmin wiz pointy-head intelligent person wise person gifted child master-hand inventor technician pedant brain bucket cranium literato illuminato mahatma Solomon clever person talent maharishi learner virtuoso hotshot adept preceptor expositor artist reader ninja docent speaker prof brilliant person idiot savant whiz kid mental giant braintruster college teacher educationalist pupil student avant-garde trainer scholastic chair schoolman mentor adviser consultant doyen university lecturer quant dean principal assistant rabbi critic augur litterateur tool disciple illuminati gnome member of a think tank learned one auger cereb commentator self-appointed expert member of a policy unit one of the cognoscenti solon cognoscenti analyst head of faculty Regius professor emeritus professor college tutor senior common room college lecturer head of department holder of a chair full professor faculty member person of letters


Having an especially high opinion of oneself, usually with contempt for others
arrogant haughty hubristic supercilious egocentric egoistic egoistical high-handed immodest imperious lordly narcissistic pompous pontifical pretentious prideful vainglorious blustering boastful opinionated overweening bold brash conceited contemptuous disdainful egotistical overbearing patronising patronizing presumptuous proud scornful self-important superior swaggering uppity affected biggity bloated brazen bumptious elitist insolent lofty mocking self-adulatory self-affected self-centered self-centred self-conceited self-congratulatory self-contented self-engrossed self-glorifying selfish self-opinionated self-promoting self-righteous self-serving snobbish snobby swellheaded swollen-headed uppish assumptive bigheaded brassy cavalier chesty cocky condescending egotistic fancy-pants full of oneself hifalutin high-and-mighty highfalutin high-hat hoity-toity huffish huffy impudent orgulous scoffing self-asserting self-assertive smug sneering sniffy snooty snotty stiff-necked stuck-up toffee-nosed toploftical toplofty vain audacious autocratic biggety big-headed bossy bragging cheeky cold-shoulder high and mighty overconfident smarty snippy puffed up stuck up jumped up wise guy on an ego trip too big for your boots self-satisfied smart-alecky full of yourself domineering important aloof puffed-up strutting loudmouth assured complacent forward cocksure full of hot air impertinent peremptory fresh sassy consequential self-aggrandizing ostentatious windbag self-regarding self-loving self-admiring presuming masterful despotic high tyrannical dismissive saucy nervy high falutin assuming cool wise confident brassbound arch magisterial egomaniac sure peacockish positive brag boast hotshot ham phony gall conceity certain phoney pushy sententious grandiose jaunty brazen-faced officious bold-faced self-confident on one's high horse self-respecting self-assured smart aleck smart guy smarty pants crowing swanky vaunting above oneself pleased with oneself braggart blowhard in love with oneself snot-nosed persnickety think too highly of oneself think a lot of oneself potty big-mouthed swanking big talking have an excessively high opinion of oneself blowing one's own trumpet aristocratic ritzy bombastic big self-applauding exultant highfalutin' la-de-da hot stuff on ego trip too big for one's britches egomaniacal grandstanding solipsistic self-indulgent independent self-preoccupied self-infatuated self-oriented self-sufficient self-involved wrapped up in oneself having a swelled head self-obsessed inflated self-absorbed inward-looking self-interested wrapped up with oneself self-seeking stuck on oneself self-concerned swollen rude flip pert disrespectful smart contumelious shameless lippy irreverent unabashed malapert barefaced discourteous flippant overbold impolite familiar unblushing inconsiderate assertive insubordinate bold as brass mouthy blatant brass-necked insulting dictatorial fearless procacious arrant unmannerly overfamiliar brave forceful ill-mannered loud uncivil authoritarian offensive unshrinking daring aggressive defiant crude rash gritty bad-mannered mannerless boldfaced authoritative facetious plucky courageous mischievous obtrusive dauntless ballsy gutsy undaunted out-of-line out of line cute spunky smart-aleck unafraid smarty-pants smart-arsed oppressive abusive thrusting disparaging intrepid valiant thoughtless unflinching smart-assed free dominating heroic gallant off-base intrusive pushful crusty dashing game blusterous sarcastic holier-than-thou crass showy unembarrassed inappropriate impetuous unashamed offhand impulsive boasting derisive dogmatic pontificating foolhardy obnoxious unconcerned outrageous ungracious flagrant tactless improper heedless mettlesome harsh pushing valorous in-your-face breezy la-di-da doughty stout strident daredevil lionhearted heavy-handed unreserved temerarious iron-handed meddlesome tyrannous autocratical tyrannic stouthearted aweless as bold as brass uninhibited imperative ill-bred undiplomatic commanding feisty stout-hearted playful stiff loudmouthed gutty witty jocular glib jokey too big for one's boots hotheaded whimsical tongue-in-cheek frivolous impolitic funny ambitious humorous ridiculous silly bullish impish sardonic reckless satirical arbitrary comical shocking snippety iconoclastic presumptive brazenfaced madcap precipitate hasty carefree bright sacrilegious profane impious blasphemous untactful vivacious loud-mouthed poised stalwart unblenching repressive undemocratic spirited draconian flashy enterprising forthright posh pleased with yourself composed willful rigid inflexible wilful stuffy irreverential unhallowed ungodly unholy manful bald-faced coarse unmannered prying interfering meddling nosy strict severe bantam uncalled-for venturous unhandsome greathearted heroical anti-democratic over-assertive disgracious dominant have-a-go insistent on high horse undauntable smart alecky go-ahead coming on strong too big for one's breeches too big for your breeches throwing one's weight about icy putting on airs self-complacent self-flattering extraverted braggy self-pleased self-gratulatory self-dramatizing blustery extroverted puffed perky highhanded throwing one's weight around naughty standoffish indulgent overindulgent over-free relaxed offensively self-assertive overhasty previous premature insufferable remote tony lacking civility bad mannered temeritous airy autarchic undisguised driven combative volatile weisenheiming smart-mouthed tolerant free-and-easy casual clever inane riding for a fall overoptimistic careless subjugating controlling chirpy dapper keen personal unsubtle individualistic overassertive direct protrusive nosey busy intruding snoopy effervescent trashy headlong incautious maladroit high-flown reserved distant detached indifferent nose in the air overfriendly wiseguy high-pressure fierce go-getting militant meretricious indecent tawdry adventurous wisecracking put down inquisitive incongruous unsuitable frightless on your high horse blowing one's own horn overpowering emphatic think one is the cat's whiskers think one is God's gift think one is the cat's pyjamas bare-faced steely unworried unapprehensive ironhanded coercive bullying indomitable sharp-elbowed iron-fisted undismayed wry roguish joking waggish jocose lighthearted droll precious cutesy jesting venturesome off base inner-directed impervious fire-eating resolute undisturbed unalarmed overproud lion-hearted noisy blaring heading for a fall self-reliant lording it Neronian dogmatical unyielding not backwards in coming forwards mincingly clever blithe grating jarring adventuresome stubborn clamorous crack-the-whip doctrinaire stern firm dictative preponderant imperial demanding regnant ascendant prevalent can-do secure self-possessed unrepentant unawed piercing raucous tenacious throwing weight around hardy free-swinging nerved peppy emboldened believing expectant expecting well-balanced cacophonous deafening jangling dissonant thundering booming shrill ridiculing jeering amusing depraved dissolute unchaste hardened incorrigible lewd immoral abashless reprobate unaffected abandoned profligate wanton unshamed unprincipled unrestrained gaudy ear-splitting vulgar discordant salty fire eating as game as Ned Kelly go for broke hot shot dareful out on a limb taunting jibing curt churlish disagreeable jazzy tinny garish superficial brusque sure of yourself believing in oneself sure of oneself blunt teasing snide denigratory slighting detracting derisory pillorying shallow irresponsible graceless hard high-pitched metallic flirtatious insouciant unpleasant scathing absurd ludicrous cockamamie pathetic lampooning cockamamy caustic laughable risible farcical preposterous derogatory puckish unfearing unabashed by unshakable undaunted by cynical snidey gally sarky light-hearted unchivalrous uncharitable boorish unscared unalarmed by unfrightened uncouth unrefined unladylike uncomplimentary ungenteel loutish ungallant surly sullen oafish indecorous indelicate rough gruff ungentlemanly abrupt underbred inaffable sharp ignorant short crabbed yokelish bounderish for the birds having nerves of steel not scared


Confident in one's own abilities
self-confident assured confident self-assured poised secure self-reliant assertive authoritative commanding fearless positive self-asserting self-possessed composed hotdog hotshot sanguine self-secure undoubtful believing in oneself sure of oneself sure of yourself collected calm cool cool-headed bold imperturbable unruffled tranquil serene unperturbed unflappable unfazed certain sure pushy impassive self-assertive cool, calm and collected together audacious equanimous domineering at ease level-headed firm nonchalant aggressive strong bullish bossy forceful controlled can-do brave nonplussed relaxed strong-willed decisive fierce ambitious overbearing insistent in-your-face determined enterprising feisty forward militant cocksure emphatic dauntless phlegmatic gutsy courageous equable intrepid dominant upbeat well-balanced self-controlled placid gung ho laid-back imposing imperious demanding dogmatic dignified go-getting high-pressure daring overconfident urbane suave unafraid powerful elegant doubtless implicit clear decided unhesitating puffed up filled with aplomb zealous expectant unemotional unworried spirited coolheaded undisturbed limpid peaceful equal unshaken sedate recollected untroubled self-composed level possessed smooth self-respecting not backward in coming forward swaggy controlling unabashed driven committed settled defiant resolved resolute self-sufficient unshakable plucky surefooted sure-footed immodest staunch steely steadfast dashing cocky believing expecting tough tenacious graceful stoical stoic strong-minded debonair nerveless patient philosophical easygoing dynamic vigorous energetic full of oneself potent easy reserved pushing driving at peace resounding competitive violent vehement full-blooded muscular go-ahead strenuous optimistic cheerful cool as a cucumber buoyant hopeful peremptory dominating balanced practical sensible stable levelheaded grounded rational unbothered reasonable wise pragmatic unflustered prudent calmed unagitated circumspect mature realistic lordly cheery bright sober businesslike sane judicious reliable sound dependable commonsensical masterful authoritarian autocratic dictatorial moderate clearheaded well adjusted straight with one's feet on the ground unmoved full of common sense well balanced even-tempered well-adjusted in good heart of good cheer enthusiastic disposed to look on the bright side happy ridibund lively animated masterly tyrannous despotic tyrannic arrogant autocratical imperative magisterial tyrannical officious doctrinaire assaultive carnivorous pushful absolute complacent brazen rosy high pumped up high-handed arbitrary overweening oppressive harsh strict severe imperial rigid totalitarian repressive autarchic draconian unyielding inflexible high and mighty undemocratic haughty anti-democratic iron-handed opinionated monocratic pontifical coercive illiberal czarist tsarist willful wilful stubborn intolerant uncompromising iron-fisted stern obstinate unbending heavy-handed egotistic dictative summary compelling disciplinarian absolutist one-party definite ruthless subjugating bullying fanatical adamant fascistic opinionative self-opinionated opinioned pompous proud dogmatical prejudiced Neronian insolent regnant pigheaded stiff-necked one-sided bigoted bullheaded impressive self-willed all-powerful ordering bidding uncontrolled unaccountable unconstitutional single-party lofty unassailable merciless cruel overpowering unlimited unjust in charge dystopian clamorous crack-the-whip throwing one's weight about awe-inspiring diplomatic monarchic regal czarlike brutal inhuman unreasonable throwing weight around compulsatory exacting obligatory required mandatory compulsory autarchical absolutistic superior biased ironhanded mean speculative impractical theoretical overproud presumptuous brusque throwing one's weight around crack the whip in driver's seat on high horse abrupt brisk lording it supercilious unpragmatic unrealistic swivel-eyed extreme hypothetical ideological enforceable binding narrow limiting traditional classical customary conventional preponderant snotty high-and-mighty uppity ascendant prevalent cavalier stuffy disdainful sniffy holding fixed views dogged mulish pertinacious fixed undeniable stringent finished rigorous legislating sanctioned didactic preceptive normative accepted prescribed presidential entrenched downright unchallengeable narrow-minded unquestionable categorical prescriptive obdurate small-minded egotistical unequivocal wrong-headed formal

Antonym of know it all

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