​[uncountable, countable] a lack of good judgement; the fact of doing something stupid; an activity or idea that shows a lack of judgement synonym stupidity.

FOLLY definition: 1. the fact of being stupid, or a stupid action, idea, etc.: 2. a building in the form of a small…. Learn more.

Noun ... (uncountable) A lavishly-produced theatrical revue characterized by major stars, huge casts, and opulent costumes and scenery.

follies in British English (ˈfɒlɪz ) plural noun. theatre. an elaborately costumed revue. That night, Valerie Robson had gone to see The Seaside Follies at ...

/ˈfɑli/ (pl. follies) 1[uncountable, countable] a lack of good judgment; the fact of doing something stupid; an activity or idea that shows a lack of judgment ...

noun · the state or quality of being foolish; lack of understanding or sense. · a costly and foolish undertaking; unwise investment or expenditure.

Folly is a noun that means "foolish or crazy behavior." It would be folly to spend all night playing video games when you have a difficult exam the next day.

FOLLY meaning: 1 : the lack of good sense or judgment foolishness; 2 : a foolish act or idea foolish behavior.

An example of foolishness; a foolish action, error, idea, practice, etc.; a ridiculous thing, an absurdity.