lunatic, madmanA highly offensive and derogatory term for a person with a mental illness; avoid using it. The neutral term 精神障害者 is also becoming less preferred, so use a specific condition or person-first wording when appropriate.
JA: 「キチガイ」は差別的な表現なので、使わないほうがいい。
EN: “Lunatic” is a discriminatory expression, so it’s better not to use it.
lunatic, crazy personA highly offensive and derogatory term for a person with a mental illness or someone considered insane. Avoid using it; it may appear in older media or quoted speech.
JA: その映画には「キチガイ」という差別的な言葉が出てくる。
EN: The discriminatory term “キチガイ” appears in that movie.