noun

idiot

idiot, fool

He felt like an idiot when he realised his mistake.

He felt like an idiot when he realized his mistake.

You idiot! You've broken it.

You idiot! You've broken it.

to be an idiot to be a stupid person Don't be an idiot.

to call ((sb.)) an idiot to insult (sb.) by calling them stupid He called me an idiot.

Synonyms: fool, moron, imbecile; Antonyms: genius, sage

From Greek 'idiotes' meaning 'private person, layman', which later came to mean 'ignorant person'.

This is a strong insult. Be careful when using it. It's often used in informal, emotional situations.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.