Irregular
Irregular adjective - Not rigidly following established form, custom, or rules.
Usage example: the request is irregular, but I'll allow it
Unauthorized and irregular are semantically related. In some cases you can use "Unauthorized" instead an adjective "Irregular".
Nearby Words: irregularity, irregularly
Unauthorized
Unauthorized adjective - Not endowed with authority.
Irregular and unauthorized are semantically related. Sometimes you can use "Irregular" instead an adjective "Unauthorized".
Nearby Word: unauthorised
Mutual synonyms
Cite this Source
Unauthorized and Irregular. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/irregular/unauthorized
Irregular & Unauthorized. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/irregular/unauthorized>.
Unauthorized or Irregular. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/irregular/unauthorized.
Google Ngram Viewer shows how "irregular" and "unauthorized" have occurred on timeline