- Folly is defined as an act of foolishness or a lack of good sense.
- An example of folly is someone intentionally stabbing their foot with a pitch fork.
- An example of folly is building a hospital on an earthquake fault line.
- a lack of understanding, sense, or rational conduct; foolishness
- any foolish action or belief
- any foolish and useless but expensive undertaking
- Obsolete wickedness or evil; also, lewdness
- action that ends or can end in disaster
Origin of follyMiddle English folie ; from Old French ; from fol: see fool
- Lack of good sense, understanding, or foresight: an act of folly
- a. An act or instance of foolishness: regretted the follies of his youth.b. A costly undertaking having an absurd or ruinous outcome.
- follies (used with a sing. or pl. verb) An elaborate theatrical revue consisting of music, dance, and skits.
- A structure, such as a pavilion in a garden, that is chiefly decorative rather than practical in purpose.
Origin of follyMiddle English folie, from Old French, from fol, foolish, from Late Latin follis, windbag, fool; see fool.
- This is a war of folly.
- Thoughtless action resulting in tragic consequence.
- The purchase of Alaska from Russia was termed Seward's folly.
- A fanciful building built for purely ornamental reasons.
From Old French folie (“madness”), from the adjective fol (“mad, insane”).