| false(adjective, bad, correct, wrong, fake) |
| erroneous(adjective, bad, correct, wrong, fake) |
| incorrect(adjective, bad, correct, wrong, fake) |
| unsound(adjective, bad, correct, wrong, fake) |
| inaccurate(adjective, bad, correct, wrong, fake) |
| faulty(adjective, bad, wrong, fake, rough) |
| invalid(adjective, correct, wrong, fake, false) |
| specious(adjective, bad, correct, wrong, fake) |
| flawed(adjective, wrong, false, improper) |
| incongruous(adjective, false, insane, unhealthy) |
| mad(adjective, wrong, false, foolish, unreasonable) |
| unsubstantial(bad, false, error, insane) |
| unstable(adjective, false, foolish, unreasonable) |
| weak(unhealthy, frail, broken, defective) |
| demented(false, foolish, unreasonable, insane) |
| frail(unhealthy, broken, defective, broken-down) |
| insane(false, foolish, unreasonable, unhealthy) |
| insubstantial(false, vague, insane, incorrect) |
| sick(improper, unhealthy, frail, broken) |
| unreliable(adjective, wrong, false, dishonest) |