Certain
Certain adjective - Known but not named.
Nebulous
Nebulous adjective - Having an often intentionally veiled or uncertain meaning.
Usage example: made nebulous references to some major changes the future may hold
Both words in one sentence
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While Mary Sue is too nebulous to be judged by any hard and fast standard, certain traits have become surprisingly popular in defining what "makes" a Sue.
Source: Common Mary Sue Traits
Cite this Source
Nebulous and Certain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/certain/nebulous
Certain & Nebulous. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/certain/nebulous>.
Nebulous or Certain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/certain/nebulous.
Google Ngram Viewer shows how "certain" and "nebulous" have occurred on timeline