| disequilibrium(noun, anxiety, weakness, uncertainty, shake) |
| disquiet(noun, anxiety, weakness, uncertainty, shake) |
| double-mindedness(noun, irresolution) |
| eccentricity |
| facetiousness(noun, sport, humor, entertainment, diversion) |
| fad(noun, fancy, humor, impulse, quirk) |
| fickle |
| flippancy(noun, humor, lightheartedness, frivolity, lightness) |
| fluidity(noun, anxiety, weakness, uncertainty, shake) |
| fool notion(noun, expression, fancy, humor, impulse) |
| frailty(noun, anxiety, weakness, uncertainty, shake) |
| gag(noun, fancy, humor, impulse, quirk) |
| halfheartedness(noun, irresolution) |
| haphazardness(noun, motivelessness) |
| hesitance(noun, irresolution) |
| high spirits(noun, expression, sport, humor, entertainment) |
| humor(noun, fancy, impulse, cheerfulness, quirk) |
| imbalance(noun, anxiety, weakness, uncertainty, unpredictability) |
| immaturity(noun, anxiety, weakness, uncertainty, shake) |
| impulse(noun, fancy, humor, quirk, whim) |