quick

1 having or showing the ability to respond without delay or hesitation she's a quick wit, always ready with a pun or joke when the moment calls for one Synonyms alacritous, alert, expeditious, prompt, ready, willing Related Words receptive, responsive; immediate, instant, instantaneous, summary; breakneck, breathless, brisk, fast, fleet, fleet-footed, hit-and-run, lightning, rapid, rapid-fire, rattling, snappy, speedy, swift, whirlwind; eager, keen, sharp; apt, clever, quick, quick-witted, ready-witted, sharp-witted, smart Near Antonyms unresponsive; crawling, creeping, dallying, dawdling, dilatory, dillydallying, dragging, laggard, lagging, lazy, lazyish, leisurely, logy (also loggy), poking, poky (or pokey), slothful, slow, slowish, sluggish, tardy, unhurried; dormant, idle, inactive, inert

2 having or showing quickness of mind a quick lad, he immediately caught on to how the machinery operated Synonyms alert, brainy, bright, brilliant, clever, exceptional, fast, hyperintelligent, keen, nimble, intelligent, quick-witted, sharp, sharp-witted, smart, supersmart, ultrasmartRelated Words apt, ingenious, resourceful; acute, astute, discerning, heady, insightful, knowing, perceptive, percipient, perspicacious, sagacious, sapient, savvy, wise; cerebral, erudite, genial, highbrow, knowledgeable, learned, literate, scholarly, well-read; educated, informed, schooled, skilled, trained; creative, inventive, judicious, prudent, sage, sane, sapient, sensible, sound, wise; crafty, cunning, foxy, shrewd, wily; logical, rational, reasonableNear Antonyms feebleminded, simpleminded; boobish, foolish, half-baked, idiotic (also idiotical), imbecile (or imbecilic), moronic, silly; ignorant, illiterate, lowbrow, nonintellectual, unacademic, uneducated, uninformed, unintellectual, untaught, unthinking; absurd, asinine, balmy, cockeyed, crackpot, crazy, cuckoo, daffy, daft, dippy, dotty, featherheaded, fool, half-baked, harebrained, insane, kooky (also kookie), loony (also looney), lunatic, mad, nonsensical, nutty, preposterous, sappy, screwball, tomfool, unwise, wacky (also whacky), zanyAntonyms airheaded, birdbrained, boneheaded, brain-dead, brainless, bubbleheaded, chuckleheaded, dense, dim, dim-witted, doltish, dopey (also dopy), dorky [slang], dull, dumb, dunderheaded, empty-headed, fatuous, gormless [chiefly British], half-witted, knuckleheaded, lamebrain (or lamebrained), lunkheaded, mindless, obtuse, opaque, pinheaded, senseless, simple, slow, slow-witted, soft, softheaded, stupid, thick, thickheaded, thick-witted, unbrilliant, unintelligent, unsmart, vacuous, weak-minded, witless

3 moving, proceeding, or acting with great speed a quick run through the car wash, and your vehicle will look as good as new Synonyms blistering, breakneck, breathless, brisk, dizzy, fleet, fleet-footed, flying, galloping, hasty, hot, lightning, nippy, fast, rapid, rapid-fire, rattling, snappy, speedy, splitting, swift, whirlwind, zippyRelated Words expeditious, prompt, ready; accelerated, hastened, hurried, quickened, rushed; breathtaking; energetic, strenuous, strong, vigorous; high-speed; rush; ultrafast, ultrarapidNear Antonyms crawling, dallying, dawdling, dillydallying, dragging, laggard, languid, lingering, plodding, poking, poky (or pokey), slowish, sluggish, unhurried; deliberate, leisurely, measured; dilatory, late, tardy; ultraslowAntonyms slow

4 having or showing life after the battle, there was a hurried accounting of the quick and the dead Synonyms animate, breathing, live, living, aliveRelated Words active, animated, dynamic, lively, thriving, vibrant, vigorous, vital, vivacious; current, existent, existing, extant, going, prevailing, surviving; resurrectedNear Antonyms dying, fading, moribund; stillborn; reposing, resting; ghostlike, ghostly, ghosty, zombielike; absent, extinct, fallen, finished, gone, lapsed, lost, nonexistent, perished, terminated, vanished, wiped out; barren, desertAntonyms asleep, breathless, cold, dead, deceased, defunct, departed, expired, inanimate, lifeless, nonliving

5 able to sense slight impressions or differences parlayed her quick eye for beauty into ownership of a top modeling agency Synonyms delicate, fine, keen, perceptive, acute, sensitive, sharpRelated Words accurate, clear, discerning, good, piercing, precise, receptive, sensible, subtle; hair-trigger, hyperacute, hypersensitive, oversensitive, supersensitiveNear Antonyms bad, deadened, dimmed, dull, dulled, fading; dead, imperceptive, insensible, insensitive, numb; imprecise, inaccurate

6 archaic  containing unborn young within the body a woman quick with child Synonyms big, caught, enceinte, expectant, expecting, gone, gravid, heavy, pregnant [archaic]Related Words parturient, prenatal; childbearing, gestational; brooding; conceiving, impregnatedNear Antonyms barren, infertile; aborting, miscarrying; deliveredAntonyms nonpregnant