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The meaning of FOOL is a person lacking in judgment or prudence. How to use fool in a sentence.

FOOL definition: 1. a person who behaves in a silly way without thinking: 2. to trick someone or make someone…. Learn more.

If you call someone a fool, you are indicating that you think they are not at all sensible and show a lack of good judgment.

Oct 31, 2025 · fool (plural fools) (derogatory) A person with poor judgment or little intelligence. quotations

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Fool definition: a silly or stupid person; a person who lacks judgment or sense.. See examples of FOOL used in a sentence.

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