Unalterable and Uncertain

Opposite meaning words

Unalterable adjective - Not capable of changing or being changed.

Usage example: the rules of the game are unalterable, regardless of who is playing

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Uncertain is an antonym for unalterable.

Nearby Words: unaltered, unalterably

Uncertain adjective - Likely to change frequently, suddenly, or unexpectedly.

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Unalterable is an antonym for uncertain.

Nearby Words: uncertainty, uncertainly

Cite this Source

Uncertain and Unalterable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/unalterable/uncertain

Unalterable & Uncertain. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/unalterable/uncertain>.

Uncertain or Unalterable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/unalterable/uncertain.

Google Ngram Viewer shows how "unalterable" and "uncertain" have occurred on timeline