| crazy(adjective, feature, weak, character, simple) |
| mad(adjective, love, weak, simple, wild) |
| insane(adjective, weak, simple, wild, silly) |
| batty(adjective, slang, wild, silly, foolish) |
| demented(adjective, wild, strange, silly, foolish) |
| nutty(noun, adjective, weak, simple, slang) |
| loony(adjective, weak, simple, informal, wild) |
| nuts(noun, adjective, slang, wild, strange) |
| silly(adjective, weak, simple, wild, foolish) |
| barmy(adjective, crazy, mad, odd, insane) |
| foolish(adjective, weak, simple, wild, strange) |
| lunatic(adjective, weak, simple, wild, silly) |
| wacky(adjective, weak, simple, slang, wild) |
| deranged(adjective, wild, silly, foolish, stupid) |
| dotty(noun, adjective, weak, simple, strange) |
| screwy(adjective, feature, character, slang, wild) |
| crazed(adjective, wild, silly, foolish, stupid) |
| bonkers(adjective, informal, silly, stupid, crazy) |
| cracked(adjective, informal, wild, silly, foolish) |
| kooky(adjective, weak, simple, wild, silly) |