Crazy meaning

What does “crazy” mean? Definitions, examples, synonyms and opposites.

“crazy” is a noun and adjective with 6 meanings. Its most common meaning is: someone deranged and possibly dangerous.

crazy

affected with madness or insanity
“a man who had gone mad”
Synonymsbrainsick demented disturbed mad sick unbalanced unhinged
foolish; totally unsound
“a crazy scheme”
“half-baked ideas”
Synonymshalf-baked screwball softheaded
possessed by inordinate excitement
“the crowd went crazy”
“was crazy to try his new bicycle”
bizarre or fantastic
“had a crazy dream”
“wore a crazy hat”
intensely enthusiastic about or preoccupied with
“crazy about cars and racing”
“they are dotty about each other”
Synonymswild dotty gaga

Source: WordNet 3.1, Princeton University