| ill-conceived(adjective, characteristic, madness, insanity) |
| impracticable(adjective, characteristic, madness, insanity) |
| imprudent(adjective, characteristic, madness, insanity) |
| inane(adjective, characteristic, madness, insanity) |
| inappropriate(adjective, characteristic, madness, insanity) |
| insane(adjective, characteristic, madness, insanity) |
| irresponsible(adjective, characteristic, madness, insanity) |
| mental illness(disorder, instability, mentality, imbalance) |
| nonsensical(adjective, characteristic, madness, insanity) |
| odd(adjective, characteristic, madness, insanity) |
| outrageous(adjective, characteristic, madness, insanity) |
| peculiar(adjective, characteristic, madness, insanity) |
| preposterous(adjective, characteristic, madness, insanity) |
| puerile(adjective, characteristic, madness, insanity) |
| quixotic(adjective, characteristic, madness, insanity) |
| senseless(adjective, characteristic, madness, insanity) |
| short-sighted(adjective, characteristic, madness, insanity) |
| strange(adjective, characteristic, madness, insanity) |
| unrealistic(adjective, characteristic, madness, insanity) |
| unworkable(adjective, characteristic, madness, insanity) |