| jittery(weak, unstable, unsettled, unsteady, trembling) |
| lacking(adjective, uncertain, nervous, doubtful, shaky) |
| loose(unstable, vulnerable, dangerous, unprotected, precarious) |
| meandering(irregular, unpredictable, unreliable) |
| mistrustful(adjective, uncertain, nervous, doubtful, shaky) |
| nervous(adjective, weak, uncertain, unstable, unsettled) |
| nomadic(irregular, unpredictable, unreliable) |
| not set(expression, weak, unstable, unsettled, shaky) |
| oddball(irregular, unpredictable, unreliable) |
| open(adjective, uncertain, nervous, doubtful, shaky) |
| open to attack(expression, unstable, vulnerable, dangerous, precarious) |
| oscillating |
| oscillatory |
| peculiar(irregular, unpredictable, unreliable) |
| pendulous |
| perilous(unstable, vulnerable, risky, dangerous, hazardous) |
| periodic |
| planetary(irregular, unpredictable, unreliable) |
| precarious(adjective, weak, unstable, unsettled, shaky) |
| problematic(adjective, uncertain, nervous, doubtful, shaky) |