| unreliable(adjective, loose, uncertain, nervous, unstable) |
| unsafe(unstable, vulnerable, dangerous, unprotected, precarious) |
| unshielded(unstable, vulnerable, dangerous, unprotected, precarious) |
| unsound(weak, unstable, unsettled, vulnerable, dangerous) |
| unsteady(weak, unstable, unsettled, vulnerable, dangerous) |
| unsupported |
| untrustworthy(adjective, uncertain, nervous, doubtful, shaky) |
| untrusty(adjective, uncertain, nervous, doubtful, shaky) |
| up for grabs(expression, adjective, idiom, uncertain, nervous) |
| vacillant |
| vacillating(weak, uncertain, nervous, unstable, doubtful) |
| vulnerable(unstable, dangerous, unprotected, precarious, unguarded) |
| wimpy(adjective, uncertain, nervous, doubtful, shaky) |
| withdrawn |
| yielding(weak, unstable, unsettled, unsteady, trembling) |
| Delphic(nervous, insecure, unsure) |
| adrift |
| afloat |
| afraid(nervous, insecure, unsure) |
| ambulant(itinerant, wayfaring) |