Insignificant
Insignificant adjective - Lacking importance.
Plain and insignificant are semantically related. In some cases you can use "Plain" instead an adjective "Insignificant".
Plain
Plain adjective - Free from all additions or embellishment.
Insignificant and plain are semantically related. Sometimes you can use "Insignificant" instead an adjective "Plain".
Both words in one sentence
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Yumi from Maria-sama ga Miteru is described as being a plain, non-athletic girl of average intelligence, who berates herself constantly for being insignificant.
Source: This Loser Is You
Cite this Source
Plain and Insignificant. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/insignificant/plain
Insignificant & Plain. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/insignificant/plain>.
Plain or Insignificant. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/insignificant/plain.
Google Ngram Viewer shows how "insignificant" and "plain" have occurred on timeline