immutable

adjective

im·​mu·​ta·​ble (ˌ)i(m)-ˈmyü-tə-bəl How to pronounce immutable (audio)
: not capable of or susceptible to change
immutableness noun
immutably adverb

Did you know?

Immutable may describe something that is incapable of change, but the word itself—like all words—is mutable, both capable of and prone to alteration. To put a finer point on it, if language were fixed, we wouldn’t have immutable itself, which required a variety of mutations of the Latin verb mutare (“to change”) to reach our tongues (or pens, keyboards, or touchscreens—oh the many permutations of communication!). Other English words that can be traced back to mutare include mutate, transmute, and commute. Which reminds us—the mutability of language makes great food for thought during one’s commute.

Examples of immutable in a Sentence

the immutable laws of nature one of the immutable laws of television is that low ratings inevitably lead to cancellation
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Trump’s order declared the federal government would recognize only two immutable sexes: male and female, based on whether people are born with eggs or sperm, rather than on their chromosomes. Susan Haigh, Los Angeles Times, 14 Feb. 2025 There are reasons to hope Trump’s approach is based on more immutable principles and sophisticated groundwork. Nick Paton Walsh, CNN, 13 Feb. 2025 Those are pretty much immutable facts in the TV landscape. Rick Porter, The Hollywood Reporter, 9 Feb. 2025 The birth stories describe God not as some distant, immutable force of creation – or worse, of judgment or violent destruction – but a God who enters human life vulnerable, small, and fragile. Lynne Silva-Breen, Twin Cities, 6 Feb. 2025 See All Example Sentences for immutable

Word History

Etymology

Middle English, from Latin immutabilis, from in- + mutabilis mutable

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of immutable was in the 15th century

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Cite this Entry

“Immutable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immutable. Accessed 3 Mar. 2025.

Kids Definition

immutable

adjective
im·​mu·​ta·​ble (ˈ)im-ˈ(m)yüt-ə-bəl How to pronounce immutable (audio)
: impossible to change
immutably adverb

More from Merriam-Webster on immutable

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