crazy definition, meaning - what is crazy in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “crazy”

See all translations

crazy

adjective uk   us   /ˈkreɪ.zi/

crazy adjective (NOT SENSIBLE)

A2 stupid or not reasonable: It's a crazy idea. You're crazy to buy a house without seeing it. mentally ill: I seriously think she'll go crazy if she doesn't have a holiday soon.
More examples

crazy adjective (ANGRY)

B2 annoyed or angry: The constant noise drove me crazy (= made me become angry).
crazily
adverb uk   us   /-zɪ.li/
craziness
noun [U] uk   us   /-nəs/

crazy

noun [C] uk   us   /ˈkreɪ.zi/ US slang
a person who behaves in a way that is stupid or not reasonable, especially one who is mentally ill: There's some old crazy over there shouting and spitting at people.
(Definition of crazy from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of crazy?
Add Cambridge dictionaries to your browser to your website

Definitions of “crazy” in other dictionaries

Word of the Day

decider

a final game or competition that allows one person or team to win, or the winning point scored

Word of the Day

What’s All The Commotion About? (Words to describe sounds)

by Kate Woodford,
May 20, 2015
​​​ In this post we look at a range of words and phrases that we use to describe noise and the absence of noise. Starting with complete quiet, we sometimes use the noun hush to describe silence: A hush fell over the room as the bride walked in./There was a deathly hush (=complete

Read More 

ancestral health noun

May 25, 2015
diet based on the presumed diet of our Palaeolithic ancestors ‘Ancestral health,’ to use a term popular among Paleo followers, has gone mass.

Read More