| swing(noun, verb, unstable, fluctuate, unsteady) |
| swinging(noun, swing, unstable, waver, unsteady) |
| falter(noun, verb, unstable, fluctuate, unsteady) |
| sway(noun, verb, unstable, fluctuate, unsteady) |
| vacillant(adjective, unstable, fluctuate, unsteady) |
| waver(verb, unstable, fluctuate, unsteady) |
| hesitate(verb, unstable, fluctuate, unsteady) |
| oscillation(noun, swing, unstable, waver, unsteady) |
| tossing(noun, swing, unstable, waver, unsteady) |
| activity(verb, unstable, fluctuate, unsteady) |
| alternate(noun, adjective, unstable, fluctuate, unsteady) |
| flicker over(verb, unstable, fluctuate, unsteady) |
| balance(noun, thing, equipment, apparatus) |
| balance-wheel(noun, thing, equipment, apparatus) |
| beat(noun, unstable, unsteady, vibrate) |
| bob(noun, thing, equipment, apparatus) |
| chop(noun, unstable, unsteady, vibrate) |
| convulsion(noun, unstable, unsteady, vibrate) |
| demur(noun, unstable, unsteady, vibrate) |
| differential lever(noun, thing, equipment, apparatus) |