mutant

adjective

mu·​tant ˈmyü-tᵊnt How to pronounce mutant (audio)
Synonyms of mutantnext
: of, relating to, or produced by mutation
mutant noun

Examples of mutant in a Sentence

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.
Patrick Stewart, Ian McKellen, Rebecca Romijn, Alan Cumming, James Marsden, Kelsey Grammer, and Channing Tatum are among the stars reprising their mutant roles from various X-Men projects. Wesley Stenzel, Entertainment Weekly, 9 Jan. 2026 Professors Melissa Harrison and Peter Lewis used fruit flies to to study how cellular pathways are misregulated by a cancer-causing mutant protein. Kelly Meyerhofer, jsonline.com, 7 Jan. 2026 There’s also a massive leg lumbering in the distance which could be a Sentinel, the gigantic, mutant-hunting robots that are some of X-Men’s most iconic villains. Jordan Moreau, Variety, 6 Jan. 2026 That tower, too, invoked a 1,000-year-old style to disguise its mutant dimensions. Justin Davidson, Curbed, 3 Dec. 2025 See All Example Sentences for mutant

Word History

Etymology

Latin mutant-, mutans, present participle of mutare

First Known Use

1903, in the meaning defined above

Time Traveler
The first known use of mutant was in 1903

Browse Nearby Words

Cite this Entry

“Mutant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mutant. Accessed 25 Jan. 2026.

Kids Definition

mutant

1 of 2 adjective
mu·​tant
ˈmyüt-ᵊnt
: of, relating to, or produced by mutation

mutant

2 of 2 noun
: a mutant individual

Medical Definition

mutant

1 of 2 adjective
mu·​tant ˈmyüt-ᵊnt How to pronounce mutant (audio)
: of, relating to, or produced by mutation

mutant

2 of 2 noun
: a mutant individual

More from Merriam-Webster on mutant

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