invariant

adjective

in·​vari·​ant (ˌ)in-ˈver-ē-ənt How to pronounce invariant (audio)
: constant, unchanging
specifically : unchanged by specified mathematical or physical operations or transformations
invariant factor
invariant noun

Examples of invariant in a Sentence

an invariant value
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.
The spectrum of initial density fluctuations should be almost, but not perfectly, scale-invariant, and instead will be just a few percent larger on large cosmic scales than small ones. Big Think, 11 Mar. 2025 The things that change are distances, times, velocities, and energies; mass, or rest mass, remains invariant. Big Think, 28 Feb. 2025 Lorentz symmetry is a concept suggesting that the laws of physics are invariant (unchanging) under Lorentz transformations. Rupendra Brahambhatt, Interesting Engineering, 24 Jan. 2025 The initial fluctuations imprinted onto our Universe should be almost, but not quite, perfectly scale-invariant. Big Think, 23 Jan. 2025 See All Example Sentences for invariant

Word History

First Known Use

1874, in the meaning defined above

Time Traveler
The first known use of invariant was in 1874

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Cite this Entry

“Invariant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invariant. Accessed 24 Apr. 2025.

Kids Definition

invariant

adjective
in·​vari·​ant (ˈ)in-ˈver-ē-ənt How to pronounce invariant (audio)
-ˈvar-
: not changing or altering
invariant noun

More from Merriam-Webster on invariant

Last Updated: - Updated example sentences
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