roller coaster, rollercoaster, whipsaw, swings, tense, slugfest, pendulum, tug, flatline, bounce, gyrations, crescendoes, ebb, dogfight, choppiness, tumble, wrenching, wobble, crosscurrent, reversals, tilt, pulsating, tussle, sine curve, fulcrum, skidding, twists, rocky, whippy, extremes, slide, zigs, stalemate, zigzag, rout, testiest, zero sum, intertwining, jungle gym, meandering, sawing, teeter, halves, microcosm, spurt, tumult, winning streak, djia, jousting, lurches, deadlock, dips, overtimes, parabola, losing streak, formful, bucking bronco, momentums, losers, whirligig, gamesmanship, highs, pivot, cliffhanger, claw, teeterboard, snapback, lows, equilibriums, moonball, tailspin, deuces, uncoiling, bull, downspin, midway, whirlwind, squeaking, turbulence, indices, tightrope, titanic, pogo stick, volatility, ebb tide, ticktock, chippy, minuet, tension, straddle, storybook, brinkmanship, flurry, rollercoasters, monkey bars, trend analysis, surges, inexorability, bungee, walloping, suspense, capper, hothouse, treadmill, turmoil, carnival, iceberg, chasm, coaster, powerhouse, chessboard, rut, avalanche, gauntlet, gyroscope, impasse, jigsaw, maelstrom, straggle, whirlpool

balanced

playground

move, play, plaything, toy

teeter-toter, totter