| obscure(adjective, clear, rough, difficult, dark) |
| shy(adjective, awkward, hesitant, cautious, insecure) |
| speculative(adjective, delicate, sensitive, doubtful, unsettled) |
| untrustworthy(adjective, nervous, doubtful, dubious, unpredictable) |
| ever-changing |
| fishy(adjective, honest, informal, doubtful, unsettled) |
| hazy(adjective, rough, doubtful, unsettled, vague) |
| inconsistent(adjective, change, weak, continue, passionate) |
| mercurial(adjective, change, continue, delicate, passionate) |
| mutable(adjective, upset, change, weak, anxious) |
| tentative(adjective, open, weak, doubtful, unsettled) |
| treacherous(adjective, delicate, sensitive, unpredictable, unreliable) |
| volatile(adjective, change, continue, difficult, delicate) |
| wishy-washy(adjective, open, weak, unstable, doubtful) |
| apprehensive(adjective, anxious, nervous, worried, hesitant) |
| cowardly(adjective, nervous, unstable, hesitant, fearful) |
| distrustful(adjective, nervous, doubtful, unsettled, hesitant) |
| fitful(adjective, unstable, irregular, doubtful, unsettled) |
| in doubt(expression, adjective, idiom, clear, certain) |
| incalculable(adjective, doubtful, unreliable, changeable, insecure) |