Regular and Unpunctual

Regular

Regular adjective - Appearing or occurring repeatedly from time to time.

Unpunctual is an antonym for regular.

Unpunctual

Unpunctual adjective - Not punctual; after the appointed time.

Regular is an antonym for unpunctual in random topic.
Cite this Source
Unpunctual and Regular. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/regular/unpunctual
Regular & Unpunctual. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/regular/unpunctual>.
Unpunctual or Regular. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/regular/unpunctual.
Google Ngram Viewer shows how "regular" and "unpunctual" have occurred on timeline