For certain
For certain adverb - Definitely or positively (`sure' is sometimes used informally for `surely').
Plain and for certain are semantically related. in certain topic. In some cases you can use "Plain" instead an adjective phrase "For certain".
Plain
Plain adjective - Free from all additions or embellishment.
For certain and plain are semantically related. Sometimes you can use "For certain" instead an adjective "Plain".
Mutual synonyms
Related pairs
Both terms in one sentence
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Needless to say, it can be rather unnerving for certain fans to see other characters mention how "manly" and "plain" Guo Jing is, when he◊ looks◊ prettier◊ than some of the female cast.
Source: Adaptational Attractiveness -
Artistic License Chemistry: Although the game is reasonably accurate with regards to certain details, and is in fact used as educational software in chemistry classes for certain topics, most of the chemistry is vastly oversimplified, inaccurate or plain impossible.
Source: Video Game / SpaceChem
Cite this Source
Plain and For certain. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/for_certain/plain
For certain & Plain. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/for_certain/plain>.
Plain or For certain. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/for_certain/plain.
Google Ngram Viewer shows how "for certain" and "plain" have occurred on timeline