| cuckoo(adjective, slang, silly, foolish, stupid) |
| distraught(adjective, wild, cruel, crazy) |
| irrational(adjective, wild, stupid, hot, crazy) |
| kooky(adjective, silly, foolish, crazy) |
| psycho(adjective, silly, foolish, crazy) |
| screwy(adjective, slang, silly, foolish, stupid) |
| touched(adjective, silly, foolish, stupid, crazy) |
| unhinged(adjective, silly, crazy, insane) |
| fruity(adjective, slang, silly, foolish) |
| mental(adjective, silly, foolish, stupid, crazy) |
| out to lunch(expression, adjective, idiom, silly, crazy) |
| potty(adjective, silly, foolish, insane) |
| wacky(adjective, slang, silly, foolish, crazy) |
| balmy(adjective, silly, foolish, crazy) |
| bats in the belfry(expression, idiom, silly, foolish) |
| flipped out(verb, expression, phrasal verb, silly, crazy) |
| foolish(adjective, silly, stupid, crazy) |
| freaked out(expression, silly, foolish, crazy) |
| idiotic(adjective, mind, think, silly, crazy) |
| mad as a March hare(expression, idiom, silly, foolish) |