"Idiot" is an English word that dates back to the late Middle Ages, from the Old French idiot and Latin idiota, originally meaning a private person or layman, and later someone uneducated or ignorant. By the 16th century, it came to describe a person who acts in a way that shows a lack of intelligence or common sense. The term is used in informal, critical, or confrontational contexts to mock or criticize someone's behavior. It is mildly to moderately derogatory but not vulgar, widely understood, and socially acceptable in casual speech.

What is the origin of the term "idiot" and how is it used?

英語での「idiot」の定義と意味

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