| round the bend |
| wacky(adjective, sane) |
| fruity(adjective, sane) |
| bananas(adjective, wild, crazy, insane, irrational) |
| brainsick(adjective, wrong, wild, crazy, mad) |
| crazy(adjective, wrong, wild, confused, insane) |
| cuckoo(adjective, wrong, wild, crazy, confused) |
| demented(adjective, wrong, wild, crazy, mad) |
| disordered(adjective, wrong, wild, crazy, mad) |
| distraught(adjective, wrong, wild, crazy, mad) |
| insane(adjective, wrong, wild, crazy, confused) |
| lunatic(adjective, wrong, wild, crazy, mad) |
| mad(adjective, wrong, wild, crazy, confused) |
| maniac(adjective, wrong, sane, hacked, lunatic) |
| moonstruck(adjective, insane, sane) |
| whacky |
| bizarre(adjective, wrong, wild, crazy, mad) |
| crazed(adjective, wrong, wild, crazy, mad) |
| crazy as a loon(expression, adjective, idiom, wrong, confused) |
| daffy(adjective, sane) |