MUTANT Synonyms: 69 Similar and Opposite Words

mutant 1 of 2

noun

Definition of mutant

as in mutation

biology a plant or animal that is different from other plants or animals of the same kind because of a change in the structure of its genes; something produced by genetic mutation

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mutant

2 of 2

adjective

as in abnormal

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Example Sentences

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.

Recent Examples of mutant

Noun

But these genes were not mutants to start with in the human embryos that Egli’s team edited. — Paul Knoepfler, STAT, 24 June 2026 What the team needed was a natural mutant that was unable to detect the caterpillar’s saliva. — Jacek Krywko, ArsTechnica, 3 June 2026

Adjective

Gene therapy company UniQure developed a one-time treatment, AMT-130, that aims to lower brain levels of the mutant protein behind the disease, called huntingtin. — Beth Mole, ArsTechnica, 17 June 2026 Daraxonrasib is an oral RAS(ON) multi-selective inhibitor designed to block signaling from both mutant and non-mutant RAS proteins. — Neetika Walter, Interesting Engineering, 1 June 2026 See All Example Sentences for mutant

Recent Examples of Synonyms for mutant

Noun

Following alt-rock’s aughties surge, a slew of bands like Mastodon, the Mars Volta, and Coheed & Cambria became main-stage festival acts by adapting modern hard rock conventions into over-the-top mutations.

— Sam Goldner, Pitchfork, 19 July 2026
His diagnosis also means each of his children has a 50 percent chance of inheriting the BRCA2 mutation.

— Toria Sheffield, PEOPLE, 18 July 2026

Definition of mutation

Adjective

The condition, also known as cervical kyphosis, is an abnormal forward curve of the neck.

— Hanna Wickes, Kansas City Star, 23 July 2026
This is particularly noteworthy given the sheer number of heatwaves and other abnormal weather events across the continent this past summer alone.

— Kaitlyn McInnis, Forbes.com, 23 July 2026

Definition of abnormal

Noun

Sixteen-year-old Quin Duncan is a varsity lacrosse player in Wilmington is relieved to be back on the field after a bout with arteriovenous malformation (AVM).

— Stephanie Stahl, CBS News, 4 June 2026
Along with epilepsy, Benjamin also has cerebral palsy, cortical visual impairment and severe vision impairment caused by underdeveloped optic nerves and malformations in the visual centers of his brain.

— Jordan Greene, PEOPLE, 19 May 2026

Definition of malformation

Adjective

Sabatini suggested to the jury there were possible explanations for that aberrant behavior without settling on a specific reason.

— Alex Riggins, San Diego Union-Tribune, 9 July 2026
Learning that these behaviors not only exist, but are prevalent in the animal kingdom, Page says, helps debunk what remains a widespread belief among certain humans that homosexuality and transgenderism are unnatural and aberrant.

— Mike Miller, Entertainment Weekly, 19 June 2026

Definition of aberrant

Noun

Pane and McKay revealed that British actor Simon Pegg will voice the Balrog, a giant demonic monster who helps Sauron forge the One Ring.

— Laura Sirikul, Forbes.com, 27 July 2026
Curtis is divorced, and still carries a torch for his ex-wife (Kelsey Scott) — now the governor of Illinois and architect of an innovative monster rehabilitation program with the Candyman (as in the movies) its star participant.

— Alison Herman, Variety, 26 July 2026

Definition of monster

Adjective

But he has never been viewed as physically imposing or a freakish athlete.

— Cameron Teague Robinson, New York Times, 23 July 2026
Each tableau is also illustrated with generative AI, resulting in freakish scenes rife with garbled text and hallucinated details, like a diminutive squad car parked inside a police station filled with surveillance feeds.

— Joe Wilkins, Futurism, 24 June 2026

Definition of freakish

Noun

For a war imposing such radical change on the battlefield, the retention of 60-year-old Oleksandr Syrskyi as Ukraine’s top commander had become an anomaly.

— Nick Paton Walsh, CNN Money, 22 July 2026
The pause comes as a result of Centers for Medicare & Medicaid Services audits showing payment anomalies in both states, with reviews in California finding certain in-home care programs exceeding national trends in spending.

— Bloomberg, Daily News, 21 July 2026

Definition of anomaly

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mutant

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Style

“Mutant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mutant. Accessed 27 Jul. 2026.

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Synonyms of mutant

noun

adjective

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