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
Nearby Word: immutability
Mutable
Mutable adjective - Likely to change frequently, suddenly, or unexpectedly.
Usage example: a politician with very mutable positions on all the issues
Both words in one sentence
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From here, these worlds can be depicted by authors in various ways, whether it would be dramatic or comedic, immutable or mutable.
Source: Crapsack World
Cite this Source
Mutable and Immutable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/immutable/mutable
Immutable & Mutable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/immutable/mutable>.
Mutable or Immutable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/immutable/mutable.
Google Ngram Viewer shows how "immutable" and "mutable" have occurred on timeline