| indeterminate(adjective, vague, unclear, ambiguous, misleading) |
| indistinct(adjective, vague, unclear, ambiguous, misleading) |
| ironic |
| loose(adjective, unclear, indistinct, indistinguishable) |
| mysterious |
| nebulous(adjective, unclear, indistinct, indistinguishable) |
| perplexing(adjective, obscure, rough, difficult, uncertain) |
| problematic(vague, unclear, ambiguous, misleading, indistinct) |
| puzzling(vague, unclear, ambiguous, misleading, indistinct) |
| questionable(vague, unclear, ambiguous, misleading, indistinct) |
| shadowy(adjective, unclear, indistinct, indistinguishable) |
| unexplicit(vague, unclear, ambiguous, misleading, indistinct) |
| abstruse(adjective, obscure, difficult, uncertain, unclear) |
| amorphous(unclear, indistinct, indistinguishable) |
| amphibolic |
| amphibolous |
| aphotic(adjective, unlit, lightless, nubilous) |
| arcane(adjective, obscure, difficult, uncertain, unclear) |
| baffling(adjective, obscure, difficult, uncertain, unclear) |
| bewildering(unclear, indistinct, indistinguishable) |