| cracked(adjective, informal, wild, silly, foolish) |
| crazed(adjective, wild, silly, foolish, stupid) |
| cuckoo(adjective, slang, silly, foolish, crazy) |
| demented(adjective, wrong, unusual, wild, strange) |
| dippy(adjective, knowledge, slang, ability, silly) |
| eccentric(adjective, characteristic, person, unusual, wild) |
| idiotic(adjective, weak, simple, knowledge, ability) |
| senseless(adjective, weak, simple, wrong, informal) |
| buggy(adjective, slang, silly, foolish, crazy) |
| daffy(adjective, weak, simple, informal, silly) |
| fruity(adjective, slang, silly, foolish) |
| round the bend(expression, adjective, idiom, silly, foolish) |
| wild(adjective, wrong, strange, silly, foolish) |
| cockamamie(adjective, weak, simple, wrong, silly) |
| deranged(adjective, wild, silly, foolish, stupid) |
| erratic(adjective, unusual, wild, strange, silly) |
| irrational(adjective, weak, simple, informal, unusual) |
| witless(adjective, informal, foolish, crazy) |
| ridiculous(adjective, light, weak, simple, wrong) |
| touched(adjective, unusual, wild, strange, silly) |