| nutty(adjective, wild, enthusiastic, silly, foolish) |
| nutty as fruitcake(expression, adjective, idiom, silly, mad) |
| of unsound mind(expression, adjective, idiom, silly, mad) |
| out to lunch(expression, adjective, idiom, silly, mad) |
| outlandish(silly, foolish, unwise) |
| peculiar(silly, foolish, unwise) |
| rabid(adjective, wild, mad, ill, sick) |
| round the bend(expression, adjective, idiom, silly, mad) |
| screw loose(expression, adjective, silly, foolish, mad) |
| strange(silly, foolish, unwise) |
| unglued(adjective, wild, silly, foolish, mad) |
| unzipped(adjective, wild, silly, foolish, mad) |
| upset |
| weird(adjective, wild, silly, foolish, mad) |
| ape(silly, foolish, mad, insane, unwise) |
| barmy(silly, foolish, mad, insane, unwise) |
| batty(silly, foolish, mad, insane, unwise) |
| bigoted(adjective, enthusiastic, ill, sick, fervent) |
| bitten(adjective, enthusiastic, ill, sick, fervent) |
| bonkers(silly, foolish, crazy, mad, insane) |