| crazy(noun, adjective, person, light, weak) |
| mad(adjective, weak, simple, wrong, knowledge) |
| lunatic(noun, adjective, person, weak, simple) |
| nutty(noun, adjective, light, weak, simple) |
| daft(adjective, weak, simple, wild, strange) |
| nuts(noun, adjective, slang, wild, strange) |
| crackpot(noun, adjective, person, foolish, crazy) |
| dotty(noun, adjective, weak, simple, strange) |
| wacky(adjective, light, weak, simple, wrong) |
| barmy(adjective, crazy, mad, insane) |
| absurd(adjective, light, weak, simple, wrong) |
| balmy(adjective, knowledge, slang, ability, wild) |
| foolish(adjective, weak, simple, wrong, knowledge) |
| demented(adjective, wrong, wild, strange, silly) |
| nonsensical(adjective, knowledge, ability, foolish, crazy) |
| madman(noun, adjective, person, crazy, mad) |
| loopy(adjective, knowledge, ability, informal, foolish) |
| senseless(adjective, crazy, mad, insane) |
| crazed(adjective, wild, silly, foolish, stupid) |
| witless(adjective, foolish, crazy, mad) |