| cracked(adjective, informal, sane, unwell) |
| crackers(adjective, crazy, sick, sane, off) |
| dotty(adjective, crazy, sick, sane, off) |
| nutty(adjective, slang, sane, unwell) |
| of unsound mind(expression, adjective, idiom, sane, off) |
| schizophrenic(adjective, unwell) |
| screwy(adjective, slang, sane) |
| unsound(adjective, crazy, sick, sane) |
| loony(adjective, informal, sane, unwell, cuckoo) |
| cuckoo(adjective, slang, sane, unwell, neurotic) |
| fruity(adjective, slang, mad, insane, sane) |
| bananas(adjective, slang, sane) |
| maniac(adjective, crazy, mad, sick, insane) |
| touched(adjective, sane, unwell) |
| unstable(adjective, mad, insane, psychiatric) |
| buggy(adjective, slang, sane, off, dotty) |
| disordered(adjective, sane, off, dotty) |
| distraught(adjective, crazy, sick, sane) |
| moonstruck(adjective, insane, sane) |
| off(adjective, sane, dotty) |