Irregular and Undulating

Irregular

Irregular adjective - Not having a level or smooth surface.
Usage example: although the moon looks smooth from here, it actually has a very bumpy and irregular surface

Undulating and irregular are semantically related. In some cases you can use "Undulating" instead an adjective "Irregular".

Nearby Words: irregularity, irregularly

Undulating

Definitions of Irregular not found.

Irregular and undulating are semantically related. Sometimes you can use "Irregular" instead an adjective "Undulating".

Nearby Words: undulate, undulation, undulated
Cite this Source
Undulating and Irregular. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/irregular/undulating
Irregular & Undulating. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/irregular/undulating>.
Undulating or Irregular. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/irregular/undulating.
Google Ngram Viewer shows how "irregular" and "undulating" have occurred on timeline