adj., -zi·er, -zi·est.
- Affected with madness; insane.
- Informal. Departing from proportion or moderation, especially:
- Possessed by enthusiasm or excitement: The crowd at the game went crazy.
- Immoderately fond; infatuated: was crazy about boys.
- Intensely involved or preoccupied: is crazy about cars and racing.
- Foolish or impractical; senseless: a crazy scheme for making quick money.
n., pl. -zies.
One who is or appears insane: “To them she is not a brusque crazy, but ‘appropriately passionate’” (Mary McGrory).
idiom:
like crazy Informal.
- To an exceeding degree: They were running around like crazy.
crazily cra'zi·ly adv.