| insane(adjective, silly, foolish, stupid, ill) |
| schizoid |
| psychotic(noun, adjective, silly, foolish, stupid) |
| psycho(noun, adjective, crazy, mad, insane) |
| schizo(noun, adjective) |
| crazy(noun, adjective, silly, foolish, stupid) |
| certifiable |
| hebephrenic |
| lunatic(noun, adjective, person, silly, foolish) |
| mental(adjective, silly, foolish, stupid, hacked) |
| mentally ill(expression, adjective, idiom, unwell) |
| neurotic(noun, adjective, mad, maniac, worrier) |
| psychopath(noun, mad, patient, lunatic, lamebrain) |
| demented(adjective, silly, foolish, stupid, hacked) |
| deranged(adjective, silly, foolish, stupid, hacked) |
| loony(noun, adjective, silly, foolish, stupid) |
| maniac(noun, adjective, wrong, mad, confused) |
| paranoiac |
| crackpot(noun, mad, maniac) |
| mad(noun, adjective, wrong, silly, foolish) |