adjective fat·u·ous \ˈfa-chü-əs, -tyü-\

: foolish or stupid

Full Definition of FATUOUS

:  complacently or inanely foolish :  silly <a fatuous remark>
fat·u·ous·ly adverb
fat·u·ous·ness noun

Examples of FATUOUS

  1. <the fatuous questions that the audience members asked after the lecture suggested to the oceanographer that they had understood little>
  2. <ignoring the avalanche warnings, the fatuous skiers continued on their course>

Origin of FATUOUS

Latin fatuus foolish
First Known Use: 1633

Related to FATUOUS

airheaded, birdbrained, bonehead, boneheaded, brain-dead, brainless, bubbleheaded, chuckleheaded, dense, dim, dim-witted, doltish, dopey (also dopy), dorky [slang], dull, dumb, dunderheaded, empty-headed, stupid, gormless [chiefly British], half-witted, knuckleheaded, lamebrain (or lamebrained), lunkheaded, mindless, oafish, obtuse, opaque, pinheaded, senseless, simple, slow, slow-witted, soft, softheaded, thick, thickheaded, thick-witted, unintelligent, unsmart, vacuous, weak-minded, witless
apt, brainy, bright, brilliant, clever, fast, hyperintelligent, intelligent, keen, nimble, quick, quick-witted, sharp, sharp-witted, smart, supersmart, ultrasmart

Synonym Discussion of FATUOUS

simple, foolish, silly, fatuous, asinine mean actually or apparently deficient in intelligence. simple implies a degree of intelligence inadequate to cope with anything complex or involving mental effort <considered people simple who had trouble with computers>. foolish implies the character of being or seeming unable to use judgment, discretion, or good sense <foolish stunts>. silly suggests failure to act as a rational being especially by ridiculous behavior <the silly antics of revelers>. fatuous implies foolishness, inanity, and disregard of reality <fatuous conspiracy theories>. asinine suggests utter and contemptible failure to use normal rationality or perception <an asinine plot>.


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