Arbitrary and Irregular

Arbitrary

Arbitrary adjective - Lacking a definite plan, purpose, or pattern.
Usage example: the order of the names of the 10 semifinalists is entirely arbitrary

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

Irregular

Irregular adjective - Lacking in steadiness or regularity of occurrence.
Usage example: irregular mail delivery to the island

Arbitrary and irregular are semantically related. Sometimes you can use "Arbitrary" instead an adjective "Irregular".

Nearby Words: irregularity, irregularly
Cite this Source
Irregular and Arbitrary. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/arbitrary/irregular
Arbitrary & Irregular. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/arbitrary/irregular>.
Irregular or Arbitrary. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/arbitrary/irregular.
Google Ngram Viewer shows how "arbitrary" and "irregular" have occurred on timeline