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Meaning of “crazy” - Learner’s Dictionary

crazy

adjective     /ˈkreɪzi/
STUPID
A2 stupid or strange: a crazy idea I was crazy not to take that job.Stupid and sillyOf unsound mindStrange, suspicious and unnatural
ANGRY
B2 annoyed or angry: The children are driving me crazy (= making me annoyed). Dad went crazy when I told him what had happened.Angry and displeasedBad-tempered
be crazy about sb/sth
A2 to love someone very much, or to be very interested in something: Mia's crazy about baseball.Loving and in loveExcited, interested and enthusiastic
go crazy
to become very excited about something: When he came on stage the audience went crazy.Excited, interested and enthusiastic
like crazy informal
If you do something like crazy, you do a lot of it, or do it very quickly: We worked like crazy to get everything finished.Work, working and the workplaceWorking hours and periods of workIntensifying expressions
crazily adverb craziness noun [U]
(Definition of crazy from the Cambridge Learner’s Dictionary © Cambridge University Press)
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