Concerned
Unknown
Unknown adjective - Happening or existing without one's knowledge.
Concerned and unknown are semantically related. Sometimes you can use "Concerned" instead an adjective "Unknown".
Nearby Words: unknowable, unknowing
Both words in one sentence
-
As far as everyone else in the world is concerned, it really was an assassination by unknown parties.
Source: Canon Discontinuity -
It is unknown if this is because he was simply overly sensitive, outright homosexual, or (gasp) concerned about the welfare of the Korean people.
-
Unknown to all concerned there had been a First Contact some years before but it was bungled, with all the aliens and several humans killed; ashamed of their error the survivors covered things up.
Source: First Contact
Cite this Source
Unknown and Concerned. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/concerned/unknown
Concerned & Unknown. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/concerned/unknown>.
Unknown or Concerned. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/concerned/unknown.
Google Ngram Viewer shows how "concerned" and "unknown" have occurred on timeline