| arbitrary(adjective, stupid, chance, mood, surprise) |
| eccentric(adjective, characteristic, person, unusual, wild) |
| unreliable(adjective, passionate, careless, excited, foolish) |
| fluctuating(adjective, free, wild, lively, active) |
| undependable(adjective, false, passionate, careless, excited) |
| frivolous(adjective, free, careless, wild, excited) |
| crotchety(adjective, character, temper, way, behavior) |
| moody(noun, adjective, temper, way, unstable) |
| temperamental(adjective, change, continue, delicate, cross) |
| mutable(adjective, unstable, unsettled, impulsive, unpredictable) |
| queer(adjective, characteristic, person, unusual, wild) |
| uneven(adjective, irregular, unpredictable, unreliable, variable) |
| unsettled(adjective, uncertain, unstable, irregular, shaky) |
| vacillating(adjective, weak, nervous, unstable, shy) |
| fantastic(adjective, change, continue, happy, perfect) |
| irresolute(adjective, careless, nervous, unstable, shy) |
| wavering(adjective, nervous, unstable, shy, dishonest) |
| timid(adjective, feature, nervous, shy, irregular) |
| changeful(adjective, careless, unstable, dishonest, irregular) |
| cranky(adjective, characteristic, person, temper, way) |