| fluctuating(unstable, unsettled, variable, capricious) |
| fluid(unstable, unsettled, variable, capricious, fluctuating) |
| impulsive(unstable, unsettled, variable) |
| inconsistent(adjective, unstable, unsettled, variable) |
| inconstant(unstable, unsettled, variable) |
| indecisive(unstable, unsettled, variable, capricious, fluctuating) |
| independent |
| intercurrent |
| irregular(adjective, unstable, unsettled, variable, capricious) |
| irresolute(unstable, unsettled, variable, capricious, fluctuating) |
| irresponsible(unstable, unsettled, variable, capricious, fluctuating) |
| kaleidoscopic(unstable, unsettled, variable, capricious, fluctuating) |
| mercurial(adjective, unstable, unsettled, variable) |
| mobile(adjective, unstable, unsettled, variable, capricious) |
| movable(unstable, unsettled, variable, capricious, fluctuating) |
| mutable(unstable, unsettled, variable) |
| protean(unstable, unsettled, variable, capricious, fluctuating) |
| restless(unstable, unsettled, variable, capricious, fluctuating) |
| retaliatory |
| returnable |