| disputable(adjective, evidence, obscurity, absence) |
| fameless(adjective, evidence, obscurity, absence) |
| nameless(adjective, evidence, obscurity, absence) |
| not proven(expression, evidence, proof, absence) |
| obscure(adjective, evidence, obscurity, absence) |
| unexplored(adjective, evidence, obscurity, absence) |
| unheard(adjective, evidence, obscurity, absence) |
| unknown(adjective, evidence, obscurity, absence) |
| unrecorded(adjective, evidence, obscurity, absence) |
| unstudied(adjective, evidence, obscurity, absence) |
| unwritten(adjective, evidence, obscurity, absence) |
| arguable(adjective, dispute, argue, contradiction) |
| controversial(adjective, dispute, argue, contradiction) |
| debatable(adjective, dispute, argue, contradiction) |
| doubtful(adjective, dispute, argue, contradiction) |
| dubious(adjective, dispute, argue, contradiction) |
| moot(adjective, dispute, argue, contradiction) |
| mootable(adjective, dispute, argue, contradiction) |
| problematic(adjective, dispute, argue, contradiction) |
| questionable(adjective, dispute, argue, contradiction) |