adjective

mad

insane, crazy, angry, enthusiastic

She was mad at him for being late.

She was angry at him for being late.

The noise is driving me mad.

The noise is driving me crazy.

He is mad about football.

He is crazy about football.

It was a mad idea to go out in the storm.

It was a crazy idea to go out in the storm.

mad ((at sb.)) 〈for sth./-ing〉 angry with someone I'm mad at you for forgetting my birthday.

mad ((about sth./sb.)) very enthusiastic about something She's mad about that new singer.

to go mad to become insane or very angry He'll go mad if he finds out.

like mad very fast or hard We were working like mad to finish on time.

Synonyms: insane, crazy, angry, furious; Antonyms: sane, calm

From Old English 'gemædde', meaning 'insane'.

In British English, 'mad' primarily means 'insane' or 'crazy'. The American English sense of 'angry' is less common but understood.

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