Plain and Upstream

Plain

Plain adjective - Free from all additions or embellishment.

Upstream is an antonym for plain.

Nearby Words: plainly, plainness, plaint

Upstream

Upstream adjective - In the direction against a stream's current.

Plain is an antonym for upstream in hard to do topic.
Cite this Source
Upstream and Plain. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/plain/upstream
Plain & Upstream. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/plain/upstream>.
Upstream or Plain. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/plain/upstream.
Google Ngram Viewer shows how "plain" and "upstream" have occurred on timeline