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
Rugged is a synonym for irregular in property topic. In some cases you can use "Rugged" instead an adjective "Irregular".
Nearby Words: irregularity, irregularly
Cite this Source
Rugged and Irregular. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/irregular/rugged
Irregular & Rugged. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/irregular/rugged>.
Rugged or Irregular. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/irregular/rugged.
Google Ngram Viewer shows how "irregular" and "rugged" have occurred on timeline