10
wavy(adjective, sinuous)
6
rolling(verb, adjective, mountainous, rotating)
5
billowy(adjective, mounting, protuberant, surging)
5
undulant(adjective, mounting, protuberant, rotating)
3
fluctuating(verb, adjective, oscillating)
3
oscillating(verb, adjective, irregular, crooked, inclined)
3
swaying(verb, oscillating)
3
vacillating(verb, adjective, oscillating)
3
vibrating(verb, adjective, oscillating)
3
waving
3
curvy(adjective, supple, twisting, winding)
3
pendulous
3
throbbing(verb, adjective, oscillating)
3
undulatory
3
zigzag(adjective, side, oscillating)
2
alternating(verb, adjective, oscillating)
2
hilly(adjective, bumpy, mountainous, rotating)
2
billowing
2
flowing
2
heaving(verb, adjective, bouncing, rolling, surging)
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APASmart Define. (2015). undulating thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/undulating/thesaurus/synonyms
ChicagoSmart Define. 2015. "undulating thesaurus" https://smartdefine.org/undulating/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, undulating thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/undulating/thesaurus/synonyms>.
MLASmart Define. "undulating thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/undulating/thesaurus/synonyms>