| debatable(noun, adjective, open, certain, uncertain) |
| disputable(noun, adjective, open, certain, uncertain) |
| arguable(noun, adjective, certain, uncertain, doubtful) |
| uncertain(noun, adjective, open, certain, uncertain) |
| questionable(noun, adjective, certain, uncertain, doubtful) |
| undecided(noun, adjective, open, uncertain, definite) |
| controversial(noun, adjective, uncertain, doubtful, unsettled) |
| problematic(adjective, open, certain, uncertain, doubtful) |
| doubtful(noun, adjective, open, certain, uncertain) |
| unsettled(noun, adjective, open, uncertain, doubtful) |
| open(verb, adjective, present, submit, offer) |
| debate(noun, verb, give, consider, free) |
| dispute(noun, verb, consider, oppose, settle) |
| dubious(noun, adjective, open, uncertain, doubtful) |
| argue(verb, consider, oppose, settle, dispute) |
| discuss(verb, give, consider, free, oppose) |
| problematical(adjective, certain, uncertain, doubtful, dubious) |
| unresolved(adjective, open, uncertain, doubtful, unsettled) |
| broach(verb, give, advance, open, present) |
| bring up(verb, expression, phrasal verb, move, give) |