| ridiculous(adjective, light, weak, simple, wrong) |
| stupid(adjective, weak, simple, wrong, wild) |
| whacky |
| touched(adjective, unusual, wild, strange, silly) |
| cockeyed(adjective, knowledge, ability, informal, silly) |
| dizzy |
| freakish(adjective, characteristic, person, behavior) |
| inane(adjective, wild, silly, foolish, stupid) |
| kookie |
| ludicrous(adjective, light, weak, simple, wild) |
| peculiar(adjective, informal, unusual, strange, foolish) |
| potty(adjective, wild, silly, foolish, stupid) |
| screwball(noun, silly, foolish, crazy, mad) |
| slaphappy(adjective, silly, preposterous, impossible, ludicrous) |
| around the bend(expression, adjective, idiom, sane) |
| buffoonish |
| crackpot(noun, adjective, crazy, mad, odd) |
| crank(adjective, characteristic, person, behavior) |
| distraught(adjective, crazy, mad, odd, insane) |
| fantastic(adjective, weak, simple, informal, unusual) |