be unsteady

fluctuate lurch seesaw teeter vacillate waver wobble

dangle fishtail flicker librate palpitate pitch pivot reel ripple rock roll stagger sway swing switch swivel teeter-totter thrash toss totter undulate vary vibrate waddle wag waggle waltz wave whirl wiggle

pendulate

remain stay

be still stabilize steady

careen falter flounder lurch oscillate quiver reel seesaw shimmy stumble sway teeter totter tremble vacillate vibrate waver wiggle

rock roll shake swing weave

be still remain stay steady

stabilize