| crazed(adjective, upset, silly, crazy) |
| unstable(adjective, false, ill, unsettled) |
| non compos mentis(expression, adjective, idiom, law) |
| of unsound mind(expression, adjective, idiom, silly) |
| sick(adjective, crazy, ill, insane) |
| barmy(adjective, silly, foolish, crazy) |
| psycho(adjective, silly, crazy, insane) |
| cuckoo(adjective, slang, silly, foolish, crazy) |
| maniacal(adjective, silly, crazy, insane) |
| moonstruck(adjective, silly, foolish, insane) |
| out to lunch(expression, adjective, idiom, silly) |
| potty(adjective, silly, foolish, insane) |
| berserk(adjective, upset, silly, crazy) |
| delirious(adjective, upset, silly, crazy) |
| kooky(adjective, strange, silly, foolish, crazy) |
| distraught(adjective, upset, insane, frantic) |
| fruity(adjective, slang, silly, foolish) |
| mentally ill(expression, adjective, insane, sane) |
| screwball(adjective, silly, foolish, crazy) |
| dippy(adjective, silly, foolish, insane) |