| delirious(adjective, silly, foolish, crazy) |
| freaked out(expression, silly, foolish, crazy) |
| mental(adjective, silly, foolish, crazy) |
| out to lunch(expression, adjective, idiom, silly, crazy) |
| touched(adjective, unusual, wild, strange, silly) |
| unhinged(adjective, strange, silly, foolish) |
| bats in the belfry(expression, idiom, silly, foolish) |
| cockamamie(adjective, weak, great, simple, wrong) |
| flipped(silly, foolish, insane, unwise) |
| flipped out(expression, silly, foolish, crazy) |
| harebrained(adjective, weak, great, simple, extraordinary) |
| idiotic(weak, simple, silly, foolish, crazy) |
| mad as a March hare(expression, idiom, silly, foolish) |
| mad as a hatter(expression, idiom, silly, foolish) |
| mentally strange(expression, silly, foolish, insane) |
| nonsensical(adjective, weak, simple, silly, foolish) |
| nutty as fruitcake(expression, idiom, silly, foolish) |
| ridiculous(adjective, weak, simple, wrong, wild) |
| schizo(adjective, silly, foolish, insane) |
| screw loose(expression, silly, foolish, insane) |