Conventional
Conventional adjective - Accepted, used, or practiced by most people.
Plain and conventional are semantically related in common topic. In some cases you can use "Plain" instead an adjective "Conventional".
Plain
Plain adjective - Free from all additions or embellishment.
Conventional and plain are semantically related in normal topic. Sometimes you can use "Conventional" instead an adjective "Plain".
Both words in one sentence
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The whole story circles around how plain hard it is to eliminate it by conventional means.
Source: Fanfic / Flash Fog - The whole story circles around how plain hard it is to eliminate the fog by conventional means.
Source: Gone Horribly Wrong
Cite this Source
Plain and Conventional. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/conventional/plain
Conventional & Plain. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/conventional/plain>.
Plain or Conventional. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/conventional/plain.
Google Ngram Viewer shows how "conventional" and "plain" have occurred on timeline