Plain and Underground

Opposite meaning words

sentence examples collocations

Plain

Plain adjective - Free from all additions or embellishment.
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Synonyms for Plain
Antonyms for Plain
Underground is an antonym for plain.
Nearby Words: plainly, plainness, plaint

Underground

Underground adjective - Undertaken or done so as to escape being observed or known by others.
Usage example: an underground operation to smuggle ancient artifacts out of the country
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Synonyms for Underground
Antonyms for Underground
Plain is an antonym for underground.
Similar words of plain

Similar words of underground

How words are described

common common plain common underground
entire entire plain entire underground
large large plain large underground
vast vast plain vast underground
Other adjectives: red.

Both words in one sentence

  • First Time in the Sun After all the hardship Ryu, Nina, and Lin have to go through in Breath of Fire: Dragon Quarter, they're rewarded by finally escaping the underground city and stepping onto a sunlit, grassy plain.
    Source: First Time in the Sun
  • Literature / Artemis Fowl One could speculate that the fairies have set up underground Internet and cell phone service providers... but it was Artemis' own laptop, so it probably ran on a plain old human-run ISP.
    Source: Literature / Artemis Fowl
  • Ascetic Aesthetic Monster Zero, the underground complex on Planet X is composed primarily of plain white tunnels with curved walls.
    Source: Ascetic Aesthetic
More sentences
Cite this Source
Underground and Plain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/plain/underground
Plain & Underground. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/plain/underground>.
Underground or Plain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/plain/underground.

Antonyms for plain


Antonyms for underground

Google Ngram Viewer shows how "plain" and "underground" have occurred on timeline