| irregular(adjective, rough, unstable, unsettled, unpredictable) |
| fitful(adjective, rough, loose, anxious, unstable) |
| erratic(adjective, unstable, irregular, unsettled, unpredictable) |
| sporadic(adjective, regular, irregular, routine, unreliable) |
| intermittent(adjective, rough, regular, irregular, odd) |
| broken(verb, adjective, intermittent, discontinuity) |
| convulsive(adjective, passionate, violent, excited, violence) |
| periodic(adjective, erratic, discontinuity, twitching) |
| changeable(adjective, rough, anxious, unstable, irregular) |
| discontinuous(adjective, loose, irregular, unreliable, uneven) |
| jerky(adjective, rough, irregular, odd, unreliable) |
| spastic(adjective, erratic, twitching) |
| unsteady(adjective, rough, anxious, unstable, irregular) |
| desultory(adjective, irregular, unreliable, broken, erratic) |
| occasional(adjective, regular, irregular, routine, unreliable) |
| uneven(adjective, smooth, rough, irregular, unreliable) |
| capricious(adjective, unstable, irregular, unsettled, unpredictable) |
| disconnected(adjective, loose, irregular, unreliable, uneven) |
| fickle(adjective, unstable, unsettled, unpredictable, unreliable) |
| uncertain(adjective, unstable, irregular, unsettled, unpredictable) |