Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “mad”

See all translations

mad

adjective [-er/-est only]  /mæd/ (-dd-) us  

mad adjective [-er/-est only] (ANGRY)

angry or annoyed: I get so mad at her I sometimes start screaming.

mad adjective [-er/-est only] (NOT CONTROLLED)

(of an activity) wild, fast, or excited and not well controlled: We made a mad dash for the school bus.

mad adjective [-er/-est only] (ENTHUSIASTIC)

infml very enthusiastic and interested: Jeanne’s mad about old Woody Allen movies.

mad adjective [-er/-est only] (MENTALLY ILL)

mentally ill, or unable to behave in a reasonable way; insane : In his years as a prisoner of war, he often felt as if he might go mad.
(Definition of mad from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of mad?
Add Cambridge dictionaries to your browser to your website

Definitions of “mad” in other dictionaries

Word of the Day

ditto

used to agree with something that has just been said, or to avoid repeating something that has been said

Word of the Day

Euphemisms (Words used to Avoid Offending People)

by Kate Woodford,
March 04, 2015
​​​ We recently looked at the language that we use to describe lies and lying. One area of lying that we considered was ‘being slightly dishonest, or not speaking the complete truth’. One reason for not speaking the complete truth is to avoid saying something that might upset or offend people. Words and

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More