| uncertain(adjective, open, certain, uncertain, nervous) |
| unresolved(adjective, open, certain, uncertain, doubtful) |
| unsettled(adjective, open, certain, uncertain, doubtful) |
| doubtful(adjective, open, uncertain, nervous, unsettled) |
| unused |
| undecided(adjective, open, certain, uncertain, nervous) |
| iffy(adjective, open, uncertain, doubtful, vague) |
| open(adjective, certain, uncertain, nervous, doubtful) |
| pending(adjective, uncertain) |
| questionable(adjective, uncertain, doubtful, unsettled, vague) |
| tentative(adjective, open, uncertain, doubtful, vague) |
| undetermined(adjective, open, certain, uncertain, unsettled) |
| Delphic(uncertain, nervous, worried, hesitant, insecure) |
| afraid(uncertain, nervous, worried, hesitant, insecure) |
| ambiguous(adjective, open, uncertain, doubtful, unsettled) |
| ambivalent(open, doubtful, vague, hesitant, neutral) |
| anxious(uncertain, nervous, worried, hesitant, insecure) |
| apprehensive(uncertain, nervous, worried, hesitant, insecure) |
| awaiting(unsettled, incomplete, imminent, undecided, pendent) |
| betwixt and between(expression, idiom, open, uncertain, vague) |