Plain
Plain adjective - Free from all additions or embellishment.
Unpolished and plain are semantically related In some cases you can use "Unpolished" instead an adjective "Plain".
Unpolished
Unpolished adjective - Lacking in refinement or good taste.
Plain and unpolished are semantically related in unvarnished topic. Sometimes you can use "Plain" instead an adjective "Unpolished".
Mutual synonyms
Both words in one sentence
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A lot of Disney Princess, or just plain Frozen period, merchandise uses a stock image of Elsa using an earlier, unpolished model.
Source: Off Model / Toys
Cite this Source
Unpolished and Plain. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/plain/unpolished
Plain & Unpolished. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/plain/unpolished>.
Unpolished or Plain. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/plain/unpolished.
Google Ngram Viewer shows how "plain" and "unpolished" have occurred on timeline