| vacillant(hesitant, wavering, indecisive) |
| versatile(adjective, unstable, unsettled, changeable, variable) |
| ambivalent(adjective, hesitant, wavering, indecisive, irresolute) |
| dizzy(adjective, weak, happy, careless, excited) |
| dubious(adjective, dishonest, deceitful, unpredictable, unreliable) |
| evanescent(adjective, transient) |
| fast and loose(expression, adjective, idiom, unreliable, insecure) |
| freakish(adjective, change, continue, careless, unstable) |
| insecure(adjective, unreliable, treacherous, incalculable) |
| light(adjective, happy, funny, cheerful, impulsive) |
| moody(adjective, careless, unstable, unreasonable, changeable) |
| shifty(adjective, weak, false, uncertain, dishonest) |
| short-lived(adjective, impulsive, unpredictable, transient, explosive) |
| slippery(adjective, dishonest, deceitful, unreliable, changeable) |
| wanton(adjective, free, careless, wild, erratic) |
| chancy(adjective, delicate, changeable, tricky, erratic) |
| convertible(adjective, unstable, unsettled, changeable, variable) |
| coquettish(adjective, cold, hot, changeable, indecisive) |
| ever-changing(adjective, changeable) |
| fading(adjective, transient) |