| quaver(noun, quiver, shudder, vibration) |
| recurrence(noun, recurrence) |
| regularity(noun, recurrence) |
| shakiness(noun, anxiety, weakness, uncertainty, shake) |
| shaking(noun, shake, quiver, shudder, trembling) |
| trembling(noun, quiver, shudder, tremor, shaking) |
| unsteadiness(noun, anxiety, weakness, uncertainty, shake) |
| wobble |
| anxiety(noun, trouble, concern, weakness, confusion) |
| changeableness(noun, trouble, concern, anxiety, weakness) |
| disequilibrium(noun, anxiety, weakness, uncertainty, shake) |
| disquiet(noun, trouble, concern, anxiety, weakness) |
| equivocation(noun, delay, weakness, doubt, uncertainty) |
| fitfulness(noun, anxiety, weakness, uncertainty, shake) |
| flapping |
| flightiness(noun, anxiety, weakness, uncertainty, shake) |
| fluidity(noun, anxiety, weakness, uncertainty, shake) |
| frailty(noun, anxiety, weakness, uncertainty, shake) |
| immaturity(noun, anxiety, weakness, uncertainty, shake) |
| impermanence(noun, anxiety, weakness, uncertainty, shake) |