Irregular
Irregular adjective - Departing from some accepted standard of what is normal.
Nebulous and irregular are semantically related. In some cases you can use "Nebulous" instead an adjective "Irregular".
Nearby Words: irregularity, irregularly
Cite this Source
Nebulous and Irregular. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/irregular/nebulous
Irregular & Nebulous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/irregular/nebulous>.
Nebulous or Irregular. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/irregular/nebulous.
Google Ngram Viewer shows how "irregular" and "nebulous" have occurred on timeline