Synonym of time consuming

Adjective

Requiring significant amounts of time
arduous inefficient laborious long onerous slow timewasting chronophagous taxing hard difficult exacting demanding burdensome heavy crushing exhausting oppressive weighty troublesome formidable challenging gruelling wearing toilsome trying severe back-breaking strenuous uphill Herculean exigent tiring stressful fatiguing killing stiff punishing grueling persnickety wearisome backbreaking ponderous rigorous pressing distressing intolerable galling tedious tiresome grinding painful cumbersome tough testing painstaking bruising harsh torturous debilitating tortuous daunting unsparing sapping moiling draining fierce murderous killer intimidating agonising harrowing hellish hairy imperious operose unpleasant gargantuan effortful wearying shattering Augean unbearable unforgiving knackering toilful rugged pick-and-shovel backbreaker sweaty grim unyielding stringent herculean ambitious tall jarring excruciating upstream energy-consuming forbidding solemn vigorous agonizing thorny distressful hellacious rough grievous bothersome brutal depleting tricky inconvenient awkward responsible grave irksome merciless excessive overtaxing overpowering vexatious serious austere embittering plodding headache cruel enervating crippling relentless labored laboured bitter worrying inhuman strict searing hardhanded enervative disturbing worrisome unremitting traumatic sticky upsetting colossal intense really hard savage superincumbent knotty no picnic very hard draconian hectic mighty hefty heavy-handed nerve-racking extreme unrelenting critical despotic spartan uncomfortable tormenting awful tyrannical domineering tough going weary problematic monumental inexorable frustrating pressured tight stern fraught impressive dire vexing rigid bleak pitiless exasperating disagreeable ruthless mean gigantic authoritarian staggering hazardous prostrating impossible titanic flinty slavish difficile tense forceful Sisyphean bold anxious unreasonable abusive grandiose boring overwhelming drudging steep prickly delicate daring punitive immoderate aggressive dictatorial unfair racking murder dour repressive extravagant agitating dangerous wicked lofty insufferable tyrannous worksome unjust almighty energetic problematical ticklish perilous chancy concerning dodgy iffy dark precarious bad nasty uncompromising very difficult wretched immense busy unfriendly dubious hostile suspect questionable prohibitive unendurable ironhanded ramrod large-scale ferocious high-pressure troubling hard-hearted hard-nosed anxiety-ridden huge stretching exorbitant a nuisance physical fiendishly difficult tremendously difficult very challenging massive dreadful an imposition overburdening carking protracted lengthy hardworking withering searching mammoth prodigious thoroughgoing strained dogged nagging drastic aggravating major Spartan shocking heroic courageous careful hypercritical thorough precise nit-picking pestilent exerting large order heavy sledding complex complicated profound confused concentrated intensive abstruse stormy te recondite sensitive controversial inflexible a stinker of a firm by the book intransigent brassbound audacious ominous unpermissive dicey easier said than done high-impact torturesome drudgy vicious unnerving scabrous uphill battle hard-won marathon problem not easy like getting blood out of a stone discomforting violent maleficent brutish wolfish truculent sadistic barbaric cast-iron hard-line heightened barbarous unfeeling unkind callous autocratic unrealistic industrious chastening inhumane intolerant heartless unsympathetic undemocratic grand elaborate intrepid suppressive insensitive unmerciful improbable ballsy brash idealistic unfeasible implacable pretentious visionary unpitying illiberal fanciful unreal iron-fisted humourless sedate humorless staid sober sobersided poignant heartbreaking unlikely overbearing coercive anti-democratic magnificent disquieting heart-rending unsmiling obdurate no-nonsense uncomic astringent far-fetched difficult to achieve high-handed overweening peremptory yukky hurtful unwelcome unhappy sour miserable rotten distasteful unpalatable yucky afflicting heartrending chilling displeasing uncongenial unlovely unpleasing unsavory tragic sad hard-boiled hard-shell disheartening gloomy discouraging sombre dispiriting dismal depressive somber depressing confining icky sore remorseless mortifying great po-faced unsavoury intemperate provoking annoying inclement offensive calamitous afflictive frantic chaotic rough going active eventful frenzied frenetic lively gut-wrenching turbulent restless flustering animated madhouse tireless full tumultuous riotous furious bustling wild full on unruly spirited rowdy action-packed bumpy raucous

Adjective

Lasting or taking a long time
slow prolonged long-drawn-out protracted gradual lengthy long-lasting interminable lingering progressive conservative draggy drawn-out laborious long-winded painful overlong extended long marathon sustained dragging spun out enduring verbose prolix dragged-out seemingly endless spun-out tedious boring wearisome lasting rambling wordy great delayed dragged out far long-lived long-term dilatory diffuse diffusive late overextended limitless boundless tardy unending forever and a day for ages without end never-ending lengthened stretched out drawn out endless towering remote stretching high elongated tall strung out rangy distant far-off lofty elongate faraway deep longish running stretch expanded stretched lanky outstretched stringy gangling continued enlarged extensive far-reaching spread out garrulous windy long-drawn discursive circumlocutory meandering pleonastic circuitous periphrastic logorrheic digressive tiresome ambagious palaverous very long redundant loquacious repetitious persistent voluble maundering tautological dull ponderous tortuous talkative long-standing bombastic logorrhoeic turgid ceaseless chronic king-size oversized king-sized constant wandering everlasting monotonous continual perennial continuous king size sesquipedalian gabby chatty circumlocutionary talky permanent continuing inflated full of verbiage of considerable length pompous empty padded vague loose waffly boastful waffling flatulent gassy roundabout verbal profuse random lavish copious exuberant flowery durable abiding broad long-running multiyear multiday longevous grueling gruelling epic perdurable sustaining persisting advancing pursuing maintaining persevering progressing stale prosing flat commonplace pedestrian unceasing incessant unimaginative prosaic uninteresting humdrum perpetual uninterrupted infinite unlimited non-stop unbroken old as Methuselah full of years carrying on immeasurable unbounded unbound interminate looped eternal day-and-night timeless unabating expansive prosy remaining increased no end to no end of on a treadmill unfurled unrolled widened proffered conferred ingrained deep-rooted settled lifelong routine habitual inborn ever-present recurrent usual fixed inbred deep-seated incurable tenacious stubborn ineradicable confirmed obstinate unyielding recurring inveterate rooted haunting unmitigated unfolded spread

Antonym of time consuming

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