Alterable and Immutable

Alterable

Alterable adjective - Capable of being readily changed.
Usage example: if my vacation plans were alterable, I'd change them

Immutable is an antonym for alterable.

Immutable

Immutable adjective - Not capable of changing or being changed.
Usage example: one of the immutable laws of television is that low ratings inevitably lead to cancellation

Alterable is an antonym for immutable in unchangeable topic.

Nearby Word: immutability
Cite this Source
Immutable and Alterable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/alterable/immutable
Alterable & Immutable. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/alterable/immutable>.
Immutable or Alterable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/alterable/immutable.
Google Ngram Viewer shows how "alterable" and "immutable" have occurred on timeline