| indeterminate(adjective, clear, obscure, certain, uncertain) |
| indecisive(adjective, clear, obscure, certain, uncertain) |
| uncertain(adjective, clear, certain, doubtful, restricted) |
| weak(adjective, poor, inadequate, feeble, vague) |
| ambiguous(adjective, clear, obscure, certain, uncertain) |
| doubtful(adjective, clear, certain, uncertain, unclear) |
| unconvincing(adjective, weak, poor, thin, small) |
| illogical(adjective, sense, vague, reasoning) |
| undetermined(adjective, uncertain, doubtful, unknown, indefinite) |
| unsettled |
| indefinite(adjective, obscure, uncertain, doubtful, vague) |
| lame(adjective, weak, poor, inadequate, vague) |
| open(adjective, shaky, unlikely, unpromising) |
| vague(adjective, obscure, uncertain, anxious, unknown) |
| incomplete(adjective, poor, thin, small, inadequate) |
| unfinished |
| circumstantial(adjective, incidental, circumstantial) |
| dubitable(adjective, clear, obscure, certain, uncertain) |
| equivocal(adjective, clear, obscure, certain, uncertain) |
| invalid(adjective, poor, false, unreasonable, inadequate) |