| mad(adjective, crazy, insane, sane) |
| half-assed |
| bonkers(adjective, slang, informal, crazy, mad) |
| nuts(adjective, slang, crazy, mad, sane) |
| batty(noun, adjective, slang, crazy, mad) |
| crazy(adjective, wild, mad, insane, disturbed) |
| nutty(noun, adjective, slang, crazy, mad) |
| loco(noun, adjective, slang, crazy, mad) |
| dotty(noun, adjective, crazy, insane, irrational) |
| loony(adjective, informal, crazy, mad, sane) |
| lunatic(adjective, crazy, mad, sane) |
| screwy(adjective, slang, sane) |
| barmy |
| crackers(adjective, sane) |
| cuckoo(adjective, slang, sane) |
| daffy(adjective, slang, informal, crazy, mad) |
| daft(adjective, sane) |
| demented(adjective, sane) |
| fruity(noun, adjective, slang, insane, sane) |
| wacky(adjective, slang, sane) |