Plain
Plain adjective - Free from all additions or embellishment.
Second rate and plain are semantically related In some cases you can use "Second rate" instead an adjective "Plain".
Second rate
Cite this Source
Second rate and Plain. (2016). Retrieved 2026, August 11, from https://thesaurus.plus/related/plain/second_rate
Plain & Second rate. N.p., 2016. Web. 11 Aug. 2026. <https://thesaurus.plus/related/plain/second_rate>.
Second rate or Plain. 2016. Accessed August 11, 2026. https://thesaurus.plus/related/plain/second_rate.
Google Ngram Viewer shows how "plain" and "second rate" have occurred on timeline