Impel
Impel verb - To set or keep in motion.
Undulate
Undulate verb - Move in a wavy pattern or with a rising and falling motion.
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Synonyms for Undulate
Impel and undulate are semantically related. Sometimes you can use "Impel" instead a verb "Undulate".
Cite this Source
Undulate and Impel. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impel/undulate
Impel & Undulate. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impel/undulate>.
Undulate or Impel. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impel/undulate.
Google Ngram Viewer shows how "impel" and "undulate" have occurred on timeline