folly

Definition

Foolishness that results from a lack of foresight or lack of practicality.

Etymology

Derived from Old French folie (“madness”), from the adjective fol (“mad, insane”).

Example Sentences

• "It would be folly to walk all that way, knowing the shops are probably shut by now."
• "With the voices singing in our ears, saying That this was all folly."
• "The purchase of Alaska from Russia was termed Seward's folly."

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