Fatuous — Meaning, Definition & Synonyms

Fatuous (adjective) — Senses, Synonyms & Antonyms

1. not having or showing an ability to absorb ideas readily

   "the fatuous questions that the audience members asked after the lecture suggested to the oceanographer that they had understood little"

   similar: airheaded, birdbrained, bonehead, boneheaded, brain-dead, brainless, bubbleheaded, chuckleheaded, dense, dim, dim-witted, doltish, dopey, dorky (slang), dull, dumb, dunderheaded, empty-headed, gormless (chiefly British), half-witted, knuckleheaded, lamebrain, lunkheaded, mindless, oafish, obtuse, opaque, pinheaded, senseless, simple, slow, slow-witted, soft, softheaded, stupid, thick, thick-witted, thickheaded, unintelligent, unsmart, vacuous, weak-minded, witless
   related: cretinous, feebleminded, simpleminded, boobish, foolish, idiotic, imbecile, moronic, ignorant, illiterate, lowbrow, uneducated, uninformed, unintellectual, untaught, unthinking, absurd, asinine, balmy, cockeyed, crackpot, crazy, cuckoo, daffy, daft, dippy, dotty, featherheaded, fool, half-baked, harebrained, insane, kooky, loony, mad, nonsensical, nutty, preposterous, sappy, screwball, silly, tomfool, unwise, wacky, zany, fallacious, illogical, invalid, irrational, unreasonable
   opposite: apt, brainy, bright, brilliant, clever, fast, hyperintelligent, intelligent, keen, nimble, quick, quick-witted, sharp, sharp-witted, smart, supersmart, ultrasmart
   near: ingenious, resourceful, acute, astute, discerning, insightful, keen, knowing, perceptive, percipient, perspicacious, sagacious, sage, sapient, savvy, wise, cerebral, erudite, highbrow, intellectual, knowledgeable, learned, literate, scholarly, thinking, well-read, educated, informed, schooled, skilled, trained, crafty, cunning, foxy, shrewd, wily, judicious, prudent, sane, sensible, sound, logical, rational, reasonable, valid

2. showing or marked by a lack of good sense or judgment

   "ignoring the avalanche warnings, the fatuous skiers continued on their way down the trail"

   similar: absurd, asinine, balmy, barmy (chiefly British), batty, brainless, bubbleheaded, cockeyed, crackbrained, crackpot, crazy, cuckoo, daffy, daft, dippy, dotty, featherheaded, fool, foolish, fruity (slang), gaga, half-baked, half-witted, harebrained, inept, insane, jerky, kooky, loony, loony tunes, lunatic (informal), lunkheaded, mad, meshuga, nonsensical, nutty, preposterous, sappy, screwball, senseless, silly, simpleminded, stupid, tomfool, unwise, wacko, wacky, weak-minded, witless, zany, out to lunch
   related: airheaded, birdbrained, boobish, brain-dead, chowderheaded, chuckleheaded, clueless, dense, dim, dim-witted, doltish, dopey, dorky (slang), dull, dumb, dunderheaded, empty-headed, feebleminded, gormless (chiefly British), idiotic, imbecile, knuckleheaded, lamebrain, mindless, moronic, oafish, obtuse, opaque, pinheaded, simple, slow, slow-witted, soft, softheaded, thoughtless, thick, thickheaded, unintelligent, vacuous, fallacious, illogical, invalid, irrational, nonrational, surd, unreasonable, unreasoning, unsound, weak, farcical, laughable, ludicrous, ridiculous, notional, buffoonish, clownish, ill-advised, unconsidered, unreasoned
   opposite: judicious, prudent, sagacious, sage, sane, sapient, sensible, sound, wise
   near: brainy, bright, clever, intelligent, smart, logical, rational, reasonable, valid, well-advised