Plain
Plain adjective - Free from all additions or embellishment.
Penetrable and plain are semantically related. In some cases you can use "Penetrable" instead an adjective "Plain".
Penetrable
Penetrable adjective - Capable of being passed into or through.
Plain and penetrable are semantically related. Sometimes you can use "Plain" instead an adjective "Penetrable".
Mutual synonyms
Cite this Source
Penetrable and Plain. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/plain/penetrable
Plain & Penetrable. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/plain/penetrable>.
Penetrable or Plain. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/plain/penetrable.
Google Ngram Viewer shows how "plain" and "penetrable" have occurred on timeline