Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

intelligent

adjective

Synonyms and Antonyms of intelligent

  1. 1 having or showing quickness of mind <proud parents typically insist that their child is intelligent way beyond his or her years> <his intelligent response to the emergency averted a disaster> Synonyms alert, brainy, bright, brilliant, clever, exceptional, fast, hyperintelligent, keen, nimble, quick, quick-witted, sharp, sharp-witted, smart, supersmart, ultrasmart Related 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, reasonable Near 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), zany Antonyms 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

  2. 2 having the ability to reason <there is some debate over whether dolphins are intelligent animals> Synonyms rational, reasonable, reasoning, thinkingRelated Words analytic (or analytical), logical; brainy, cerebral, highbrow, highbrowed, intellectual; cognitional, cognitive, mental; levelheaded, practical, sane, sensible, soberNear Antonyms brainless, dense, doltish, dopey (also dopy), dorky [slang], dull, dumb, fatuous, half-witted, mindless, obtuse, senseless, slow, stupid, thickheaded; fallacious, groundless, illogical, invalid, nonsensicalAntonyms irrational, nonrational, nonthinking, unintelligent, unreasonable, unreasoning, unthinking

  3. 3 having or showing good judgment and restraint especially in conduct or speech <the only intelligent response to such a tasteless joke is to quickly change the subject> Synonyms discreet, judgmatic (or judgmatical), judicious, prudentRelated Words cautious, chary, circumspect, cozy; forehanded, foresighted, foresightful, forethoughtful; discerning, discriminating, sage, sane, sapient, senseful, sensible, wise; canny, provident; astute, perspicacious, sagacious, shrewdNear Antonyms careless, heedless, incautious, rash; improvident, shortsighted; foolish, unwiseAntonyms imprudent, indiscreet, injudicious





Seen and Heard

What made you want to look up intelligent? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a secret group of plotters

Get Word of the Day daily email!