Known
Known adjective - Apprehended with certainty.
Unknowns
Both words in one sentence
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In addition he covers known unknowns, the things we know we don't know, and unknown unknowns, the things we don't know we don't know.
Source: Didn't See That Coming - Zinnia Jones: In the episode "Filling in each other's blanks: The importance of listening", Zinnia discuss the concepts of "known unknowns" versus "unknown unknowns".
Source: Ignorant of Their Own Ignorance - Ken Loach is known for only or mostly working with actors who are unknowns.
Source: Amateur Cast
Cite this Source
Unknowns and Known. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/known/unknowns
Known & Unknowns. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/known/unknowns>.
Unknowns or Known. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/known/unknowns.
Google Ngram Viewer shows how "known" and "unknowns" have occurred on timeline