Stable
Stable adjective - Not undergoing a change in condition.
Usage example: a stable economic climate is best for business
Unalterable is a synonym for stable in secure topic. In some cases you can use "Unalterable" instead an adjective "Stable", when it comes to topics like constant.
Unalterable
Unalterable adjective - Not capable of changing or being changed.
Usage example: the rules of the game are unalterable, regardless of who is playing
Nearby Words: unaltered, unalterably
Mutual synonyms
Cite this Source
Unalterable and Stable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/stable/unalterable
Stable & Unalterable. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/stable/unalterable>.
Unalterable or Stable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/stable/unalterable.
Google Ngram Viewer shows how "stable" and "unalterable" have occurred on timeline