| precarious(adjective, uncertainty, uncertain, unreliable, insecure) |
| shaky(adjective, uncertain, doubtful, dubious, unreliable) |
| vague(adjective, clear, rough, uncertain, anxious) |
| ambiguous(adjective, clear, rough, certain, uncertain) |
| unsettled(noun, adjective, open, rough, uncertain) |
| problematical(adjective, clear, certain, uncertain, dubious) |
| fly-by-night(adjective, uncertain, dishonest, doubtful, deceitful) |
| incredible(adjective, great, flat, poor, extraordinary) |
| unlikely(adjective, open, uncertain, doubtful, shaky) |
| indefinite(adjective, obscure, rough, uncertain, doubtful) |
| notorious |
| slippery(adjective, uncertainty, dishonest, deceitful, unreliable) |
| unbelievable(adjective, weak, great, flat, poor) |
| undecided(noun, adjective, uncertain, doubtful, unsettled) |
| undependable(adjective, uncertain, dishonest, doubtful, deceitful) |
| confutable |
| dubitable(adjective, clear, certain, uncertain, anxious) |
| queer(adjective, unusual, strange, odd, dubious) |
| refutable |
| shifty(adjective, corrupt, dishonest, deceitful, dubious) |