in·​vari·​able (ˌ)in-ˈver-ē-ə-bəl How to pronounce invariable (audio)
: not changing or capable of change : constant
an invariable routine
invariable noun

Examples of invariable in a Sentence

an invariable interest rate
Recent Examples on the Web Step 12: Pay attention to the progression—the invariable, inexorable progression. Barbara Kellerman, Fortune, 6 Mar. 2024 The almost invariable promises to improve security after records are stolen contradicts the endless assurances that these companies and institutions take security seriously. Steven Levy, WIRED, 12 Jan. 2024 The invariable conditions included access to as much food as desired, a steady temperature and protection from predators. Meghan Bartels, Scientific American, 22 Dec. 2023 To read it is to move through the darkened interior of the author’s mind with your hands out, feeling for objects, listening for Beethoven’s Bagatelles, inviting haunting, all to make some sense of the invariable fact that lives are bounded but the mind is limitless. Leslie Pariseau, Los Angeles Times, 1 Mar. 2022 Unlike some of the other invariable signifiers of sexiness, a person’s middle is wrapped up, if it’s wrapped up at all, in control. New York Times, 11 May 2022 Unlike the church, Einstein wasn’t initially happy with the idea of a changing universe, preferring one invariable on large scales. Mara Johnson-Groh, Discover Magazine, 3 Jan. 2020 This is bound to become a universal, or perhaps invariable, artistic technique that will become part of the common language of music, transcending time and borders. Billboard Japan, Billboard, 12 Jan. 2023 Please enjoy, reflect on the invariable strangeness of this great planet Earth, and come back for more in the upcoming year. Rebecca Kreston, Discover Magazine, 30 Dec. 2016

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'invariable.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

15th century, in the meaning defined above

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

Dictionary Entries Near invariable

Cite this Entry

“Invariable.” Dictionary, Merriam-Webster, Accessed 25 May. 2024.

Kids Definition


in·​vari·​able (ˈ)in-ˈver-ē-ə-bəl How to pronounce invariable (audio)
: not changing or capable of change
an invariable routine
invariability noun
invariable noun

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