| daft(adjective, silly, foolish, stupid, crazy) |
| distracted(verb, adjective, wild, hot, crazy) |
| homicidal(adjective, cruel, vicious, brutal, aggressive) |
| unbalanced(adjective, silly, crazy, mad, insane) |
| loco(adjective, slang, insane, sane) |
| non compos mentis(expression, adjective, idiom, law, sane) |
| nuts(adjective, slang, wild, silly, crazy) |
| wild(adjective, wrong, cruel, silly, foolish) |
| amok |
| barmy(adjective, silly, foolish, crazy, mad) |
| bonkers(adjective, informal, wild, silly, crazy) |
| fanatical |
| frenetic(adjective, evil, wild, cruel, agitated) |
| mentally ill(adjective, sane) |
| moonstruck(noun, adjective, silly, foolish, stupid) |
| nutty(adjective, slang, silly, foolish, stupid) |
| rabid(adjective, wild, silly, foolish, stupid) |
| bughouse |
| certifiable |
| cracked(adjective, informal, silly, stupid, crazy) |