| non compos mentis(expression, adjective, idiom, law, unstable) |
| wacky(adjective, wrong, slang, unusual, wild) |
| bonkers(adjective, informal, silly, foolish, crazy) |
| delirious(adjective, upset, silly, crazy, mad) |
| loco(adjective, slang, insane, sane) |
| mental(adjective, simple, silly, foolish, mad) |
| of unsound mind(expression, adjective, idiom, silly, mad) |
| dotty(adjective, wrong, strange, silly, crazy) |
| brainsick(adjective, wrong, crazy, confused, insane) |
| daffy(adjective, simple, informal, silly, foolish) |
| screwy(adjective, slang, wild, silly, foolish) |
| sick(adjective, ill, unhealthy, frail) |
| wild(adjective, wrong, silly, foolish, stupid) |
| foolish(adjective, wrong, wild, strange, silly) |
| hysterical(adjective, upset, mad, insane, irrational) |
| maniac(adjective, violent, crazy, fierce, insane) |
| moonstruck(adjective, silly, foolish, stupid, mad) |
| psycho(adjective, silly, foolish, crazy, mad) |
| unsound(adjective, simple, foolish, crazy, unstable) |
| barmy(adjective, silly, foolish, crazy, mad) |