| tit for tat(expression, idiom) |
| train(noun, run, group, conclusion, ending) |
| unsteadiness(noun, anxiety, weakness, uncertainty, shake) |
| alternate |
| alternateness |
| changeableness(noun, anxiety, weakness, uncertainty, shake) |
| commutation |
| consecution(noun, run, group, conclusion, ending) |
| disequilibrium(noun, anxiety, weakness, uncertainty, shake) |
| disquiet(noun, anxiety, weakness, uncertainty, shake) |
| fitfulness(noun, anxiety, weakness, uncertainty, shake) |
| flightiness(noun, anxiety, weakness, uncertainty, shake) |
| fluidity(noun, anxiety, weakness, uncertainty, shake) |
| frailty(noun, anxiety, weakness, uncertainty, shake) |
| give-and-take(exchange, switch, transaction, trading) |
| hesitation(noun, anxiety, weakness, uncertainty, shake) |
| immaturity(noun, anxiety, weakness, uncertainty, shake) |
| impermanence(noun, anxiety, weakness, uncertainty, shake) |
| inconstancy(noun, anxiety, weakness, uncertainty, fluctuation) |
| inquietude(noun, anxiety, weakness, uncertainty, shake) |