Certain
Certain adjective - Known but not named.
Skeptical
Skeptical adjective - Inclined to doubt or question claims.
Usage example: it's good to be skeptical about what you see on TV
Both words in one sentence
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Theiamillis is skeptical at first, until he mentions that there are certain battles a man must take part in.
- Then The Question overhears her and is so certain that it's part of a deep government plot that even Supergirl becomes skeptical.
Source: You Have to Believe Me -
Still, one would think the protagonist would become a bit more skeptical about certain things certain shady characters ask him/her to do, especially if the shady characters in question don't give a really good reason for doing those things.
Source: Stupidity Is the Only Option
Cite this Source
Skeptical and Certain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/certain/skeptical
Certain & Skeptical. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/certain/skeptical>.
Skeptical or Certain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/certain/skeptical.
Google Ngram Viewer shows how "certain" and "skeptical" have occurred on timeline