| Noun | 1. | crazy - someone deranged and possibly dangerous | |
| Adj. | 1. | crazy - affected with madness or insanity; "a man who had gone mad"insane - afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter" | |
| 2. | crazy - foolish; totally unsound; "an impractical solution"; "a crazy scheme"; "half-baked ideas"; "a screwball proposal without a prayer of working"colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech impractical - not practical; not workable or not given to practical matters; "refloating the ship proved impractical because of the expense"; "he is intelligent but too impractical for commercial work" | |
| 3. | crazy - marked by foolish or unreasoning fondness; "she was crazy about him"; "gaga over the rock group's new album"; "he was infatuated with her"loving - feeling or showing love and affection; "loving parents"; "loving glances" | |
| 4. | crazy - possessed by inordinate excitement; "the crowd went crazy"; "was crazy to try his new bicycle"colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech | |
| 5. | crazy - bizarre or fantastic; "had a crazy dream"; "wore a crazy hat"strange, unusual - being definitely out of the ordinary and unexpected; slightly odd or even a bit weird; "a strange exaltation that was indefinable"; "a strange fantastical mind"; "what a strange sense of humor she has" | |
| 6. | crazy - intensely enthusiastic about or preoccupied with; "crazy about cars and racing"colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech enthusiastic - having or showing great excitement and interest; "enthusiastic crowds filled the streets"; "an enthusiastic response"; "was enthusiastic about taking ballet lessons" | |