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Synonyms

mutant

American  
[myoot-nt] / ˈmyut nt /

adjective

  1. undergoing or resulting from mutation.

noun

  1. a new type of organism produced as the result of mutation.

mutant British  
/ ˈmjuːtənt /

noun

  1. Also called: mutation.  an animal, organism, or gene that has undergone mutation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. of, relating to, undergoing, or resulting from change or mutation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • unmutant adjective

Etymology

Origin of mutant

1900–05; < Latin mūtant- (stem of mūtāns ), present participle of mūtāre to change; -ant

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

At the same time, Severance Hospital is working on technologies to detect and control early mutant cells through the Korea-US Innovative Result Creation R&D project.

From Science Daily • Jan. 28, 2026

More recently, he appeared in “Fallout” just long enough for his character to be mauled to death by a mutant bear.

From Salon • Jan. 15, 2026

Prior to Disney’s acquisition of Fox in 2019, the iconic mutant superhero team headlined its own franchise, which kicked off with the 2000 film “X-Men.”

From Los Angeles Times • Jan. 6, 2026

A pinched approximation of a muted trumpet suggests some kind of mutant jazz unfolding nearby, while unpredictable pitch changes conjure visions of a tape slipping off a spool.

From The Wall Street Journal • Nov. 18, 2025

Sometimes Amá stares at me like I’m some sort of mutant that slithered out of her body.

From "I Am Not Your Perfect Mexican Daughter" by Erika L. Sánchez

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.