| wary(adjective, unenthusiastic, unwilling, disinclined, skeptical) |
| wobbly(adjective, weak, nervous, unstable, feeble) |
| worried(adjective, upset, anxious, nervous, ill) |
| borderline(adjective, clear, open, delicate, certain) |
| chance(adjective, unpredictable, changeable, erratic, random) |
| confused(noun, adjective, upset, anxious, unsettled) |
| difficult(noun, adjective, hard, severe, obscure) |
| doubting(adjective, weak, doubtful, unsettled, hesitant) |
| fallible(adjective, unpredictable, unreliable, fickle, variable) |
| fearful(adjective, weak, anxious, nervous, doubtful) |
| haphazard(adjective, risky, erratic, dangerous, random) |
| incertain |
| leery(adjective, cautious, suspicious) |
| mistrustful(adjective, anxious, nervous, doubtful, worried) |
| parlous(adjective, risky, dangerous, unsafe) |
| protean(adjective, unstable, unsettled, unpredictable, unreliable) |
| shady(adjective, honest, doubtful, unsettled, vague) |
| shifty(adjective, weak, sensitive, irregular, doubtful) |
| skeptical(adjective, certain, doubt, nervous, doubtful) |
| slippery(adjective, delicate, unstable, doubtful, shaky) |