Extemporal
Informal and extemporal are semantically related. In some cases you can use "Informal" instead an adjective "Extemporal".
Informal
Informal adjective - Not rigidly following established form, custom, or rules.
Extemporal and informal are semantically related. Sometimes you can use "Extemporal" instead an adjective "Informal".
Mutual synonyms
Cite this Source
Informal and Extemporal. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/extemporal/informal
Extemporal & Informal. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/extemporal/informal>.
Informal or Extemporal. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/extemporal/informal.
Google Ngram Viewer shows how "extemporal" and "informal" have occurred on timeline