| unpredictable(adjective, careless, strange, unstable, unreasonable) |
| unreliable(adjective, unstable, irregular, doubtful, unsettled) |
| unsettled(adjective, anxious, unstable, doubtful, vague) |
| vacillating(adjective, unstable, doubtful, unsettled, vague) |
| wayward(adjective, careless, unstable, unreasonable, irregular) |
| catchy(adjective, informal, irregular, sporadic) |
| disconnected(adjective, loose, irregular, unreliable, uneven) |
| fanciful(adjective, free, careless, wild, unstable) |
| flickering(adjective, irregular, sporadic, irregularity of recurrence) |
| freakish(careless, unstable, unreasonable, unpredictable, changeable) |
| inconsistent(adjective, strange, unstable, irregular, unsettled) |
| indecisive(adjective, unstable, doubtful, unsettled, vague) |
| patchy(adjective, rough, irregular, odd, unreliable) |
| undependable(adjective, unstable, unsettled, variable) |
| wanton(adjective, free, careless, wild, caprice) |
| aimless(adjective, loose, unreliable, uneven, variable) |
| alternating(adjective, changeableness) |
| arbitrary(adjective, careless, unstable, unreasonable, irregular) |
| casual(erratic, random, haphazard) |
| changeful(adjective, careless, unstable, unreasonable, unsettled) |