Meaning of “mad” - Learner’s Dictionary


adjective uk us /mæd/
CRAZY mainly UK informal

B1 stupid or crazy:

[ + to do sth ] You're mad to walk home alone at night.

A2 mainly US angry:

Were your parents mad at you when you came home late?
go mad

UK to become very angry:

Dad'll go mad when he finds out you took the car.

to suddenly become very excited:

When the band arrived on stage, the crowd went mad.
be mad about sb/sth informal

B1 to love someone or something:

She's mad about Hugh Grant.
Jo's mad about skiing.
SICK mainly UK

not controlled:

We made a mad dash for the exit.
like mad

B2 If you run, work, etc like mad, you do it very quickly and with a lot of energy.

B2 If something hurts like mad, it hurts a lot.

(Definition of “mad” from the Cambridge Learner’s Dictionary © Cambridge University Press)