extinct

adjective
ex·​tinct | \ ik-ˈstiŋ(k)t How to pronounce extinct (audio) , ˈek-ˌstiŋ(k)t How to pronounce extinct (audio) \

Definition of extinct

 (Entry 1 of 2)

1a : no longer burning
b : no longer active an extinct volcano
2 : no longer existing an extinct animal
3a : gone out of use : superseded
b : having no qualified claimant an extinct title

extinct

verb
extincted; extincting; extincts

Definition of extinct (Entry 2 of 2)

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Synonyms & Antonyms for extinct

Synonyms: Adjective

bygone, bypast, dead, defunct, departed, done, expired, gone, nonextant, vanished

Antonyms: Adjective

alive, existent, existing, extant, living

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Examples of extinct in a Sentence

Adjective

Many of these old traditions have since become extinct. a few overgrown ruins are all that remain of that once mighty but now extinct civilization

Recent Examples on the Web: Adjective

The prehistoric shark, which went extinct 3.6 million years ago, could grow up to 60 feet in length. Susan Dunne, courant.com, "Sharks! on exhibit through summer at the Bruce," 3 July 2019 The film, Gupt explained, is set in a post-apocalyptic world where humans have gone extinct due to their misadventures. Sangeeta Tanwar, Quartz India, "A Mumbai-based startup may soon create India’s answer to The Simpsons," 25 June 2019 Their work is part of the larger goal of bringing back a species that nearly went extinct. Andrew Nicla, azcentral, "Captive-born Mexican gray wolf pups released to 'foster dens' in Arizona and New Mexico," 23 June 2019 Why did Neanderthals go extinct, and what can that tell us about our own evolution? Quanta Magazine, "Doudna’s Confidence in CRISPR’s Research Potential Burns Bright," 27 Feb. 2019 This year, After Man was republished, a book by the Scottish geologist Dougal Dixon that imagines how other species will evolve after humans go extinct, fifty million years in the future. The New York Review of Books, "Lucy Jakub," 16 Dec. 2018 Toward the end of his life, he was convinced all Loch Ness monsters had perished, lamenting in interviews the creatures had gone extinct due to global warming. Deanna Pan, BostonGlobe.com, "Why a Boston lawyer bankrolled the man behind the FBI’s infamous Bigfoot file," 10 June 2019 Researchers reviewed published research, international databases, and museum specimens such as grasses from Madagascar (pictured), tallying up 571 plants species that have gone extinct in the past 250 years. Erik Stokstad, Science | AAAS, "Twice as many plants have gone extinct than birds, mammals, and amphibians combined," 10 June 2019 Since the 16th century, the planet has seen 680 vertebrae extinctions, with more than 9 percent of all domesticated breeds of mammals used for food and agriculture becoming extinct by 2016. David Grossman, Popular Mechanics, "Our Planet Just Got a Health Check, and the Diagnosis Is Grim," 6 May 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'extinct.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of extinct

Adjective

15th century, in the meaning defined at sense 1a

Verb

15th century, in the meaning defined above

History and Etymology for extinct

Adjective

Middle English, from Latin exstinctus, past participle of exstinguere

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Statistics for extinct

Last Updated

6 Jul 2019

Look-up Popularity

Time Traveler for extinct

The first known use of extinct was in the 15th century

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More Definitions for extinct

extinct

adjective

English Language Learners Definition of extinct

: no longer existing
: no longer active

extinct

adjective
ex·​tinct | \ ik-ˈstiŋkt How to pronounce extinct (audio) \

Kids Definition of extinct

1 : no longer active an extinct volcano
2 : no longer existing Dinosaurs are extinct.

extinct

adjective
ex·​tinct | \ ik-ˈstiŋ(k)t How to pronounce extinct (audio) , ˈek-ˌ How to pronounce extinct (audio) \

Medical Definition of extinct

: no longer existing : lacking living representatives extinct prehistoric animals

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More from Merriam-Webster on extinct

Thesaurus: All synonyms and antonyms for extinct

Spanish Central: Translation of extinct

Nglish: Translation of extinct for Spanish Speakers

Britannica English: Translation of extinct for Arabic Speakers

Comments on extinct

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