| round the bend(expression, adjective, idiom, silly) |
| screw loose(expression, adjective, silly, foolish) |
| unglued(adjective, wild, silly, foolish) |
| unzipped(adjective, wild, silly, foolish) |
| weird(adjective, wild, silly, foolish) |
| ape(silly, foolish, insane, unwise) |
| barmy(silly, foolish, insane, unwise) |
| batty(silly, foolish, insane, unwise) |
| bonkers(silly, foolish, crazy, insane) |
| corybantic(adjective, wild, ill, sick) |
| cracked(silly, foolish, crazy, insane) |
| cuckoo(silly, foolish, insane, unwise) |
| daft(silly, foolish, crazy, insane) |
| demented(silly, foolish, crazy, insane) |
| dingy(silly, foolish, insane, unwise) |
| dippy(silly, foolish, crazy, insane) |
| distraught(adjective, wild, agitated, distressed) |
| distressed(adjective, wild, agitated, distracted) |
| erratic(silly, foolish, insane, unwise) |
| flaky(silly, foolish, crazy, insane) |