I. cra ‧ zy 1 S2 /ˈkreɪzi/ BrE AmE adjective ( comparative crazier , superlative craziest )
1 . STRANGE very strange or not sensible SYN mad :
The neighbours must think we’re crazy.
It’s an absolutely crazy idea.
I know this idea sounds crazy, but it may be worth a try.
crazy to do something
It’d be crazy to go out in this rain.
I must have been crazy to agree to this.
He often works 12 hours a day – it’s crazy.
2 . crazy about somebody/something liking someone very much, or very interested in something:
He’s crazy about her.
Dan’s crazy about football.
3 . ANGRY angry or annoyed:
Turn that music down. It’s driving me crazy (=really annoying me) !
Dad will go crazy when he hears about this.
4 . like crazy very much or very quickly:
We’re going to have to work like crazy to get this finished on time.
5 . go crazy to do something too much, in a way that is not usual or sensible, especially because you are excited:
Don’t go crazy and spend it all at once.
6 . MENTALLY ILL mentally ill SYN mad :
I feel so alone, sometimes I wonder if I’m going crazy.
—crazily adverb
—craziness noun [uncountable]
• • •
THESAURUS
▪ crazy very strange or not sensible – used about people, ideas, and behaviour:
People think I’m crazy when I start talking about ghosts.
|
It was a crazy thing to do.
▪ mad British English crazy:
Are you mad?
|
Whose mad idea was that?
|
At first, everyone thought he was completely mad.
▪ nuts informal ( also bonkers British English ) [not before noun] crazy:
The whole thing sounds completely nuts.
|
Have you gone bonkers?
▪ loony informal crazy:
another loony suggestion
|
The man is totally loony.
▪ insane completely crazy:
I know it sounds insane, but it’s true.
⇨ ↑ mentally ill
II. crazy 2 BrE AmE noun ( plural crazies ) [countable] especially American English informal
someone who is crazy