folly

/'fɔli/
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folly

It would be total folly to try to cross the river here.

Definition
  1. Noun:
    • Foolish or senseless behavior: The state or quality of being extremely unwise, lacking good sense or judgment.
    • A foolish act, idea, or mistake: A specific instance of such behavior; a costly or ridiculous error.
    • (Archaic/Architectural) A costly ornamental building with no practical purpose: An extravagant structure, often built in a garden or park, primarily for decoration or as a conversation piece.
Usage
  • Folly is an uncountable noun when referring to the general concept of foolishness.
    • The folly of his actions became clear to everyone.
  • Folly is a countable noun when referring to a specific foolish act or a type of building.
    • Investing all his money in that scheme was a great folly.
    • The garden features a Gothic folly.
Examples
  • As foolish behavior:
    • It is sheer folly to ignore expert advice on such a serious matter.
    • The general condemned the folly of attacking the well-defended position.
  • As a foolish act or mistake:
    • Forgetting his passport was a costly folly that ruined the trip.
    • The project was an expensive folly that yielded no results.
  • As an ornamental building:
    • The estate's 18th-century folly was designed to look like a ruined castle.
Advanced Usage
  • The height of folly: Used to emphasize that something is extremely foolish.
    • Driving in such a storm would be the height of folly.
  • A monument to folly: Describes something that stands as a lasting example of foolishness.
    • The abandoned factory stands as a monument to corporate folly.
Variants and Related Words
  • Foolish (adj): Lacking good sense or judgment; unwise.
  • Foolhardiness (n): Reckless boldness or rashness.
  • Fool (n): A person who acts unwisely or imprudently.
Synonyms
  • Foolishness: The quality of being unwise.
  • Stupidity: Behavior that shows a lack of good sense or intelligence.
  • Imprudence: Lack of care for the consequences of an action.
  • Absurdity: The quality of being ridiculous or wildly unreasonable.
Antonyms
  • Wisdom: The quality of having experience, knowledge, and good judgment.
  • Prudence: The quality of being cautious and sensible.
  • Sagacity: Keen mental discernment and good judgment.
Idioms and Phrases
  • Folly to be wise: A situation where trying to be clever or knowledgeable leads to trouble or unhappiness. (From Thomas Gray's "Ode on a Distant Prospect of Eton College": "Where ignorance is bliss, 'Tis folly to be wise.")
    • Sometimes, knowing too much about a problem just causes anxiety; in such cases, it is folly to be wise.
folly

It would be total folly to try to cross the river here.

Noun
  1. foolish or senseless behavior
  2. the quality of being rash and foolish
    • trying to drive through a blizzard is the height of folly
    • adjusting to an insane society is total foolishness
  3. a stupid mistake
  4. the trait of acting stupidly or rashly