| unconfident(adjective, uncertain, nervous, doubtful, shaky) |
| unconvinced(adjective, uncertain, nervous, doubtful, hesitant) |
| undecided(uncertain, nervous, doubtful, insecure, unsure) |
| unlikely(uncertain, doubtful, unsure) |
| up for grabs(expression, adjective, idiom, uncertain, nervous) |
| wavering(uncertain, nervous, doubtful, insecure, unsure) |
| weak(uncertain, nervous, doubtful, insecure, unsure) |
| wimpy(adjective, uncertain, nervous, doubtful, shaky) |
| wobbly(uncertain, nervous, doubtful, insecure, unsure) |
| Delphic(nervous, insecure, unsure) |
| adulterine(fickle, untrustworthy, unprincipled) |
| adulterous(fickle, untrustworthy, unprincipled) |
| afraid(nervous, insecure, unsure) |
| amoral(fickle, untrustworthy, unprincipled) |
| anxious(nervous, insecure, unsure) |
| apprehensive(nervous, insecure, unsure) |
| bigamous(fickle, untrustworthy, unprincipled) |
| capricious(adjective, false, dishonest, deceitful, unreliable) |
| changeful(fickle, untrustworthy, unprincipled) |
| choked(nervous, insecure, unsure) |