Definition of foolish
- a foolish mistake
- She takes foolish risks.
- He felt foolish when he couldn't remember where he had parked the car.
He was wearing a foolish grin.
She's been taking foolish risks.
Those flashy clothes make her look foolish.
She must feel foolish wearing those flashy clothes.
I never thought you'd be foolish enough to believe him.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'foolish.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
absurd, asinine, balmy, brainless, cockeyed, crackpot, crazy, cuckoo, daffy, daft, dippy, dotty, fatuous, featherheaded, fool, half-baked, harebrained, half-witted, inept, insane, jerky, kooky (also kookie), loony (also looney), lunatic, lunkheaded, mad, nonsensical, nutty, preposterous, sappy, screwball, senseless, silly, simpleminded, stupid, tomfool, unwise, wacky (also whacky), weak-minded, witless, zany;
airheaded, birdbrained, brain-dead, chowderheaded, chuckleheaded, clueless, dense, dim, dim-witted, doltish, dopey (also dopy), dorky [slang], dull, dumb, dunderheaded, empty-headed, fatuous, feebleminded, idiotic (also idiotical), imbecile (or imbecilic), knuckleheaded, lamebrain (or lamebrained), mindless, moronic, oafish, obtuse, opaque, pinheaded, simple, slow, slow-witted, soft, softheaded, thoughtless, thick, thickheaded, unintelligent, vacuous, witless;
out to lunch;
: having or showing a lack of good sense or judgment
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