Fixed
Fixed adjective - Not capable of changing or being changed.
Usage example: interest accrues at a fixed rate
Unalterable is a synonym for fixed in not subject to change topic. In some cases you can use "Unalterable" instead an adjective "Fixed".
Unalterable
Unalterable adjective - Not capable of changing or being changed.
Usage example: the rules of the game are unalterable, regardless of who is playing
Fixed is a synonym for unalterable in characteristic topic. You can use "Fixed" instead an adjective "Unalterable", if it concerns topics such as established, not changeable.
Nearby Words: unaltered, unalterably
Mutual synonyms
Cite this Source
Unalterable and Fixed. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fixed/unalterable
Fixed & Unalterable. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fixed/unalterable>.
Unalterable or Fixed. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fixed/unalterable.
Google Ngram Viewer shows how "fixed" and "unalterable" have occurred on timeline