undulate Synonyms

flap wave cockle ruffle riffle ripple roll surge spiral snake slither move to and fro slunk slidder sinuate shake ruffling sway swell rise and fall ebb and flow flaps wobble wind wavy waving waved vibrate undulatory undulant toss swing rolling rock rippling flapping flapped curved curve curly curl coil circumrotary billowy billow bend beat flexuous flow fluctuate