| doubtful(adjective, clear, certain, uncertain, unsettled) |
| dubious(adjective, clear, certain, uncertain, anxious) |
| problematic(adjective, clear, open, certain, uncertain) |
| questionable(adjective, clear, certain, uncertain, anxious) |
| fishy(adjective, uncertain, doubtful, dubious, suspicious) |
| in question(expression, adjective, idiom, clear, obscure) |
| suspicious(adjective, uncertain, doubtful, dubious, unclear) |
| borderline(adjective, clear, certain, uncertain, doubtful) |
| iffy(adjective, clear, informal, certain, uncertain) |
| problematical(adjective, clear, obscure, certain, uncertain) |
| suspect(uncertain, doubtful, dubious, unclear, questionable) |
| uncertain(adjective, clear, certain, anxious, doubtful) |
| debatable(adjective, uncertain, doubtful, unsettled, shaky) |
| disputable(adjective, uncertain, doubtful, dubious, tricky) |
| equivocal(adjective, clear, certain, uncertain, anxious) |
| ambiguous(adjective, clear, certain, uncertain, anxious) |
| controversial(adjective, uncertain, doubtful, unsettled, vague) |
| indecisive(adjective, clear, certain, uncertain, anxious) |
| shady(adjective, uncertain, doubtful, shaky, dubious) |
| unsure(adjective, clear, obscure, certain, uncertain) |