| undependable(nervous, insecure, unsure) |
| unpoised(uncertain, nervous, worried, hesitant, insecure) |
| unprotected(susceptible, risky, nonresistant) |
| unreliable(nervous, insecure, unsure) |
| unstable(nervous, insecure, unsure) |
| unsure(uncertain, nervous, insecure, self-doubting, unconfident) |
| untrustworthy(nervous, insecure, unsure) |
| untrusty(nervous, insecure, unsure) |
| up for grabs(expression, nervous, doubtful, insecure, unsure) |
| up the creek(expression, idiom, susceptible, risky, nonresistant) |
| vacationing(specked, jaunting) |
| vacillating(nervous, insecure, unsure) |
| vague(uncertain, nervous, worried, hesitant, insecure) |
| vincible(susceptible, risky, nonresistant) |
| voyaging(specked, vacationing, jaunting) |
| vulnerable(susceptible, risky, nonresistant) |
| wager(specked, vacationing, jaunting) |
| wavering(nervous, insecure, unsure) |
| weak(nervous, insecure, unsure) |
| weekend(specked, vacationing, jaunting) |