Plain
Plain adjective - Free from all additions or embellishment.
Undebatable and plain are semantically related. In some cases you can use "Undebatable" instead an adjective "Plain".
Undebatable
Plain and undebatable are semantically related. Sometimes you can use "Plain" instead an adjective "Undebatable".
Mutual synonyms
Cite this Source
Undebatable and Plain. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/plain/undebatable
Plain & Undebatable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/plain/undebatable>.
Undebatable or Plain. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/plain/undebatable.
Google Ngram Viewer shows how "plain" and "undebatable" have occurred on timeline