| unsettled(adjective, weak, uncertain, unstable, irregular) |
| flighty(adjective, lively, unstable, unsettled, changeable) |
| indecisive(adjective, weak, uncertain, unstable, doubtful) |
| periodic(adjective, intermittent) |
| uncertain(adjective, weak, unstable, irregular, doubtful) |
| unreliable(adjective, unstable, dishonest, irregular, unsettled) |
| varying(verb, adjective, unstable, irregular, unsettled) |
| vibrating(noun, verb, adjective, hesitant, wavering) |
| desultory(adjective, irregular, restless, disturbed, broken) |
| inconsistent(adjective, weak, uncertain, unstable, irregular) |
| undependable(adjective, unstable, irregular, unsettled, unpredictable) |
| uneven(adjective, smooth, rough, irregular, unreliable) |
| wobbling(noun, verb, oscillating) |
| changing(verb, adjective, weak, uncertain, doubtful) |
| eccentric(adjective, irregular, unreliable, uneven, variable) |
| impulsive(adjective, lively, active, unstable, irregular) |
| intermittent(adjective, rough, regular, irregular, routine) |
| spasmodic(adjective, rough, unstable, regular, irregular) |
| hesitant(adjective, weak, uncertain, doubtful, unsure) |
| jerky(adjective, rough, irregular, odd, unreliable) |