Dictionary definition · crazy
noun
- someone deranged and possibly dangerous
adjective
- affected with madness or insanity"a man who had gone mad"
- foolish; totally unsound"a crazy scheme"
- possessed by inordinate excitement"the crowd went crazy"
- bizarre or fantastic"had a crazy dream"
- intensely enthusiastic about or preoccupied with"crazy about cars and racing"
Source: Open English WordNet (CC BY 4.0).