| deranged(adjective, wild, silly, foolish, stupid) |
| lunatic(adjective, wild, silly, foolish, stupid) |
| crackers(adjective, sane) |
| daffy(adjective, slang, informal, silly, foolish) |
| kooky(adjective, wild, silly, foolish, crazy) |
| psychotic(adjective, silly, foolish, stupid, mad) |
| bananas(adjective, slang, crazy, mad, sane) |
| potty(adjective, wild, silly, foolish, stupid) |
| touched(adjective, wild, silly, foolish, stupid) |
| loopy |
| trippy |
| unhinged(adjective, silly, crazy, mad, insane) |
| bats |
| buggy(adjective, slang, silly, foolish, crazy) |
| fruity(adjective, slang, silly, foolish, mad) |
| haywire(adjective, crazy, broken) |
| non compos mentis(expression, adjective, law, mad, insane) |
| round the bend(expression, adjective, idiom, silly, foolish) |
| wild(adjective, upset, silly, foolish, stupid) |
| crazed(adjective, upset, wild, silly, foolish) |