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Noun: folly  fó-lee
  1. The trait of acting stupidly or rashly
    - foolishness, unwiseness
  2. A stupid mistake
    - stupidity, bêtise, foolishness, imbecility
  3. The quality of being rash and foolish
    "trying to drive through a blizzard is the height of folly";
    - foolishness, craziness, madness, nuttiness [informal], insanity
  4. Foolish or senseless behaviour
    - foolery, tomfoolery, craziness, lunacy, indulgence
  5. A fanciful building built for purely ornamental reasons

Derived forms: follies

Type of: caper [informal], daftness [informal], error, fault, frolic, gambol, mistake, play, romp, stupidity, trait

Antonym: wisdom

Encyclopedia: Folly, Virginia