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adjective (crazier, craziest)
1mentally deranged, especially as manifested in a wild or aggressive way:Stella went crazy and assaulted a visitor a crazy grin extremely annoyed or angry:the noise they made was driving me crazy foolish:it was crazy to hope that good might come out of this mess 2extremely enthusiastic:I’m crazy about Cindy a football-crazy bunch of boys 3(of an angle) appearing absurdly out of place or in an unlikely position:the monument leaned at a crazy angle archaic (of a ship or building) full of cracks or flaws; unsound or shaky.
noun (plural crazies) chiefly North American
a mentally deranged person.