Inalterable and Mutable

Inalterable

Inalterable adjective - Not capable of changing or being changed.
Usage example: the inalterable record of history, which we ignore at our peril

Mutable is an antonym for inalterable.

Nearby Word: inalterability

Mutable

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

Inalterable is an antonym for mutable.

Nearby Words: mutation, mutate, mutability, mutating, mutably
Cite this Source
Mutable and Inalterable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/inalterable/mutable
Inalterable & Mutable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/inalterable/mutable>.
Mutable or Inalterable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/inalterable/mutable.
Google Ngram Viewer shows how "inalterable" and "mutable" have occurred on timeline