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

To confound or prove wrong; surprise, especially pleasantly: We were sure they would fail, but they fooled us. 1. Informal. a. To speak or act facetiously or in jest; joke: I was just fooling …

The man's a complete fool! Any fool can teach himself to type. You must think I'm a bloody fool. He's given me the keys to his car - the fool! I think it amuses him to see people make fools of …

April Fools' Day or April Fool's Day (rarely called All Fools' Day[1]) is an annual custom on the 1st of April consisting of practical jokes, hoaxes, and pranks. Jokesters often expose their actions …

one who lacks sense: I felt like a fool when I couldn't figure out how to use the fax machine. a professional jester: the court fool. a person tricked or deceived into appearing silly or stupid: …

A person whose behaviour suggests a lack of intelligence, common sense, or good judgement; a silly person, an idiot; (now often) a person who acts unwisely or imprudently on a particular …

A smart or clever person can be described as no fool or as nobody's fool. He may not look very smart, but he's no fool. Don't try to trick her—she's nobody's fool. If you keep playing the fool …

Dec 14, 2025 · fool (plural fools) (derogatory) A person with poor judgment or little intelligence. quotations

In the Middle Ages, a fool was a clown or jester. Today, fools are simply silly people who clown around or lack common sense.

Fool definition: One who is deficient in judgment, sense, or understanding.