| giddy(adjective, silly, foolish, trivial, impulsive) |
| indecisive(adjective, unstable, unsettled, hesitant, fickle) |
| irresolute(adjective, unstable, irregular, unsettled, hesitant) |
| quick-tempered(adjective, delicate, nervous, sensitive, irritable) |
| shifting(adjective, unstable, limited, irregular, unsettled) |
| skittish(adjective, pleasure, glad, merry, funny) |
| temporary(adjective, present, short, brief, immediate) |
| undependable(adjective, passionate, unstable, irregular, unsettled) |
| changeful(adjective, careless, unstable, unreasonable, irregular) |
| effervescent(adjective, strong, tough, happy, careless) |
| emotional(adjective, unstable, restless, unreliable, fickle) |
| expansive(adjective, strong, tough, happy, lively) |
| fitful(adjective, weak, free, wild, uncertain) |
| fugacious(adjective, limited, changeable, brief, temporary) |
| hotheaded(adjective, passionate, unstable, irritable, unpredictable) |
| impermanent(adjective, limited, changeable, brief, temporary) |
| nervous(adjective, anxious, tense, restless, fearful) |
| passionate(adjective, nervous, fierce, unstable, unsettled) |
| wavering(adjective, unstable, irregular, unsettled, hesitant) |
| buoyant(adjective, strong, pleasure, tough, happy) |