| confutative |
| controvertible |
| faithless(adjective, dishonest, deceitful, unreliable, insecure) |
| fickle(adjective, dishonest, deceitful, unpredictable, unreliable) |
| flimsy(adjective, weak, extraordinary, doubtful, absurd) |
| inconclusive(adjective, clear, weak, certain, uncertain) |
| indistinct(uncertain, doubtful, shaky, vague, hesitant) |
| irresponsible(adjective, dishonest, deceitful, unpredictable, unreliable) |
| misleading(adjective, uncertain, doubtful, faint, vague) |
| not kosher(expression, dubious, suspect, shady) |
| obnoxious |
| preposterous(adjective, extraordinary, amazing, absurd, unbelievable) |
| ribald(adjective, coarse, vulgar, indecent, naughty) |
| ridiculous(adjective, doubtful, dubious, absurd, suspicious) |
| speculative(doubtful, shaky, vague, unsure, imaginary) |
| strange(adjective, unusual, doubtful, dubious, unexpected) |
| thin(adjective, weak, great, extraordinary, amazing) |
| unconvinced(adjective, uncertain, doubtful, unsure) |
| underhanded(adjective, corrupt, dishonest, immoral, deceitful) |
| undetermined(adjective, uncertain, doubtful, vague, hesitant) |