| hesitant(adjective, weak, uncertain, doubtful, unsure) |
| infirm(adjective, weak, indecisive, irresolute, vacillating) |
| lubricious(adjective, careless, cold, lively, uncertain) |
| mobile(adjective, weak, lively, active, unstable) |
| mortal(adjective, transient) |
| nondurable(adjective, unreliable, insecure, treacherous, incalculable) |
| passing(adjective, transient) |
| perfidious(adjective, false, dishonest, dubious, untrue) |
| shaky(adjective, weak, uncertain, unstable, doubtful) |
| trustless(adjective, dishonest, deceitful, unpredictable, unreliable) |
| unassured(adjective, dishonest, deceitful, unpredictable, unreliable) |
| unsafe(adjective, dishonest, deceitful, unpredictable, unreliable) |
| protean(adjective, unstable, unsettled, unpredictable, unreliable) |
| recreant(adjective, false, dishonest, dubious, untrue) |
| scatterbrained(adjective, careless, excited, immoral, thoughtless) |
| temporal(adjective, transient) |
| temporary(adjective, transient) |
| unsteadfast(adjective, irresolution) |
| alterable(adjective, changeable, changeableness) |
| careless(adjective, loose, foolish, unstable, unreasonable) |