| unclear(adjective, characteristic, dull, clear, open) |
| indefinite(adjective, clear, open, disorder, soft) |
| obscure(adjective, dull, clear, weak, obscure) |
| indistinct(adjective, dull, clear, weak, soft) |
| hazy(adjective, dull, clear, weak, soft) |
| ambiguous(adjective, clear, open, rough, certain) |
| dim(adjective, dull, clear, weak, soft) |
| uncertain(adjective, clear, open, obscure, rough) |
| nebulous(adjective, dull, clear, disorder, character) |
| faint(adjective, dull, clear, weak, obscure) |
| foggy(adjective, dull, clear, obscure, rough) |
| shadowy(adjective, dull, clear, weak, soft) |
| indeterminate(adjective, dull, clear, character, obscure) |
| imprecise(adjective, clear, soft, obscure, rough) |
| fuzzy(adjective, dull, clear, obscure, rough) |
| cloudy(adjective, dull, clear, obscure, rough) |
| ill-defined(adjective, dull, clear, weak, soft) |
| confused(adjective, disorder, confusion, uncertainty, uncertain) |
| amorphous(adjective, clear, disorder, character, obscure) |
| equivocal(adjective, clear, open, obscure, rough) |