| wayward(adjective, careless, unstable, unreasonable, irregular) |
| eccentric(adjective, irregular, unpredictable, unreliable, uneven) |
| flickering(adjective, irregular, disturbed, changeable, broken) |
| modifiable(adjective, changeable, flexible, compliant, pliable) |
| slippery(adjective, weak, informal, uncertain, doubtful) |
| unmethodical(adjective, unreliable, uneven, random, capricious) |
| wanton(adjective, free, careless, wild) |
| checkered |
| deviating(adjective, changing, fluctuating) |
| freakish(adjective, change, continue, careless, unstable) |
| immethodical |
| impermanent(adjective, impulsive, unpredictable, changeable, fickle) |
| indecisive(adjective, uncertain, unstable, doubtful, unsettled) |
| indefinite(adjective, careless, loose, doubtful, vague) |
| malleable(changeable, flexible, compliant, pliable, resilient) |
| one-size-fits-all |
| plastic(complex, deep, changeable, flexible, compliant) |
| rambling(irregular, unpredictable, unreliable, irregularity of recurrence) |
| shifty(adjective, weak, uncertain, doubtful, dubious) |
| temporary |