foolishness Meaning, Definition & Usage

  1. noun the trait of acting stupidly or rashly
    folly; unwiseness.
  2. noun the quality of being rash and foolish
    folly; madness; craziness.
    • trying to drive through a blizzard is the height of folly
    • adjusting to an insane society is total foolishness
  3. noun a stupid mistake
    betise; stupidity; folly; imbecility.

WordNet


Fool"ish*ness noun
Definitions
  1. The quality of being foolish.
  2. A foolish practice; an absurdity.
    The preaching of the cross is to them that perish foolishness. 1 Cor. i. 18.

Webster 1913