| insane(adjective, crazy, mad, odd) |
| absurd(adjective, crazy, mad, odd, insane) |
| agonized(adjective, crazy, mad, odd, insane) |
| balmy(adjective, crazy, mad, odd, insane) |
| bananas(adjective, slang, crazy, mad) |
| barking mad(expression, crazy, mad, insane) |
| barmy(adjective, crazy, mad, odd, insane) |
| being rash and foolish(expression, crazy, mad, insane) |
| bonkers(adjective, slang, crazy, mad) |
| buck wild(expression, crazy, mad, insane) |
| cock-eyed(adjective, slang, crazy, mad) |
| cockamamie(adjective, slang, crazy, mad) |
| cockeyed(adjective, slang, crazy, mad) |
| crackpot(adjective, crazy, mad, odd, insane) |
| crazed(adjective, crazy, mad, odd, insane) |
| crazy(adjective, mad, odd, insane) |
| daffy(adjective, slang, crazy, mad) |
| daft(adjective, crazy, mad, odd, insane) |
| delirious(adjective, crazy, mad, odd, insane) |
| dippy(adjective, slang, crazy, mad) |