| aberrant(irregular, unpredictable, unreliable) |
| abnormal(irregular, unpredictable, unreliable) |
| all aquiver(expression, weak, unstable, unsettled, shaky) |
| anomalous(irregular, unpredictable, unreliable) |
| aquake(weak, unstable, unsettled, shaky, unsteady) |
| aquiver(weak, unstable, unsettled, unsteady, trembling) |
| ashake(weak, unstable, unsettled, shaky, unsteady) |
| betwixt and between(expression, adjective, idiom, uncertain, nervous) |
| bizarre(irregular, unpredictable, unreliable) |
| borderline(adjective, uncertain, nervous, doubtful, shaky) |
| changeable(adjective, irregular, unpredictable, unreliable) |
| dangerous(unstable, vulnerable, risky, hazardous, unprotected) |
| defenseless(unstable, vulnerable, dangerous, unprotected, precarious) |
| devious(irregular, unpredictable, unreliable) |
| distrustful(adjective, uncertain, nervous, doubtful, shaky) |
| doubtful(adjective, uncertain, nervous, dubious, insecure) |
| dubious(adjective, unusual, uncertain, nervous, unstable) |
| eccentric(irregular, unpredictable, unreliable) |
| exposed(unstable, vulnerable, dangerous, unprotected, precarious) |
| faint-hearted(adjective, soft, uncertain, unstable, hesitant) |