Constant
Constant adjective - Not undergoing a change in condition.
Usage example: change is the only constant thing in the world of fashion
Uncertain
Uncertain adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: the stifling heat would occasionally be relieved by an uncertain breeze
Nearby Words: uncertainty, uncertainly
Both words in one sentence
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It's uncertain if the desert-like environment is its natural state or a result of the constant attacks.
Source: Ghibli Hills - This is because she's been horribly overexerting her body with far more constant psionic activity than can hope to be good."Protect the world, even if the future of the world is uncertain."
Source: Video Game / ESP Ra.De.
Cite this Source
Uncertain and Constant. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/constant/uncertain
Constant & Uncertain. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/constant/uncertain>.
Uncertain or Constant. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/constant/uncertain.
Google Ngram Viewer shows how "constant" and "uncertain" have occurred on timeline