Irregular and Plumb

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

Plumb is an antonym for irregular.

Nearby Words: irregularity, irregularly

Plumb

Plumb adjective - Having no exceptions or restrictions.

Irregular is an antonym for plumb.

Cite this Source
Plumb and Irregular. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/irregular/plumb
Irregular & Plumb. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/irregular/plumb>.
Plumb or Irregular. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/irregular/plumb.
Google Ngram Viewer shows how "irregular" and "plumb" have occurred on timeline