| plastic(adjective, fickle, elastic) |
| short-lived(adjective, transient) |
| temporary(adjective, transient) |
| transient(adjective, transient) |
| transitory(adjective, transient) |
| unpredictable(adjective, upset, careless, uncertain, anxious) |
| varying(adjective, unstable, unsettled, unpredictable, unreliable) |
| versatile(adjective, unstable, unsettled, changeable, variable) |
| adjustable(adjective, changeable) |
| changing(adjective, upset, uncertain, anxious, worried) |
| convertible(adjective, unstable, unsettled, changeable, variable) |
| flighty(adjective, careless, unstable, unreasonable, unsettled) |
| flitting(adjective, transient) |
| impulsive(adjective, careless, unstable, unreasonable, unsettled) |
| malleable(adjective, fickle, elastic) |
| modifiable(adjective, changeable, fickle) |
| movable(adjective, unstable, unsettled, changeable, uneven) |
| passing(adjective, transient) |
| slippery(adjective, weak, uncertain, sensitive, doubtful) |
| temporal(adjective, transient) |