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.
Security & Transparency: Using blockchain for immutable record-keeping and auditability. Chrissa McFarlane, Forbes, 1 Mar. 2025 Any information on this page promoting gender ideology is extremely inaccurate and disconnected from the immutable biological reality that there are two sexes, male and female. Dr. Allia Vaez, ABC News, 27 Feb. 2025 Jose Perez/Bauer-Griffin Her appearance last night was a reminder of an immutable fact—that while Fendi may have turned 100, Sarah Jessica Parker will be queen of the Baguette forever. Mahoro Seward, Vogue, 27 Feb. 2025 This isn't merely philosophical quibbling but an economic reality as immutable as gravity. David Faris, Newsweek, 26 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

Browse Nearby Words

Podcast

Cite this Entry

“Immutable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immutable. Accessed 6 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!