The meaning of FOLLY is lack of good sense or normal prudence and foresight. How to use folly in a sentence.

In architecture, a folly is a building constructed primarily for decoration, but suggesting through its appearance some other purpose, or of such extravagant appearance that it transcends the range of …

She said that the idea was folly. [ + to infinitive ] It would be folly for the country to become involved in the war.

1. Lack of good sense, understanding, or foresight: an act of folly 2. a. An act or instance of foolishness: regretted the follies of his youth. b. A costly undertaking having an absurd or ruinous outcome.

If you say that a particular action or way of behaving is folly or a folly, you mean that it is foolish. It's sheer folly to build nuclear power stations in a country that has dozens of earthquakes every year. …

Definition of folly noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 2, 2025 · folly (countable and uncountable, plural follies) Foolishness that results from a lack of foresight or lack of practicality. It would be folly to walk all that way, knowing the shops are probably …

Oct 3, 2023 · The fool begins his talking on the wrong basis—he's talking folly to start with; and the end of it, well, it is madness, borderline insanity.

Folly Beach, South Carolina is one of America’s last true beach towns. Just minutes from historic downtown Charleston, Folly Beach is a 12 square mile barrier island that is packed with things to do, …

FOLLY definition: the state or quality of being foolish; lack of understanding or sense. See examples of folly used in a sentence.