| insane(adjective, wild, silly, foolish, stupid) |
| crazy(adjective, wild, strange, cruel, silly) |
| lunatic(adjective, silly, hot, crazy) |
| deranged(adjective, silly, hot, crazy) |
| berserk(adjective, wild, cruel, silly, foolish) |
| crazed(adjective, wild, silly, foolish, stupid) |
| demented(adjective, silly, crazy, insane) |
| delirious(adjective, silly, crazy, insane) |
| frenzied(adjective, wild, silly, foolish, stupid) |
| psychotic(adjective, silly, foolish, stupid, crazy) |
| of unsound mind(expression, adjective, idiom, silly) |
| batty(noun, adjective, slang, silly, foolish) |
| daft(adjective, silly, foolish, stupid, crazy) |
| unbalanced(adjective, silly, crazy, insane) |
| nuts(adjective, slang, wild, silly, crazy) |
| barmy(adjective, silly, foolish, crazy) |
| bonkers(adjective, informal, wild, silly, crazy) |
| moonstruck(noun, adjective, silly, foolish, stupid) |
| nutty(adjective, slang, silly, foolish, stupid) |
| cracked(adjective, informal, silly, stupid, crazy) |