Thesaurus.com
Dictionary.com
Showing results for extinct. Search instead for extinc.
Definitions

extinct

[ik-stingkt] / ɪkˈstɪŋkt /
ADJECTIVE
dead, obsolete
Synonyms
WEAK
abolished archaic asleep bygone cold dead and gone deceased defunct departed disappeared done for doused ended exanimate exterminated extinguished fallen gone inactive late lifeless lost no longer known outmoded passed on passé snuffed out superseded terminated unknown vanished vanquished void wiped-out
Antonyms
WEAK
alive existing extant living

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.

In addition, researchers found an extinct pigeon species closely related to Australian bronzewing pigeons.

From Science Daily • Mar. 26, 2026

And if doubles are an endangered species, triples are practically extinct.

From The Wall Street Journal • Mar. 24, 2026

In 2015, the antelope suffered a mass die-off and it was feared that the Ice Age survivors would become extinct.

From BBC • Mar. 24, 2026

A tiny possum with one extra-long finger on each hand is one of two species thought to have been extinct that have been discovered in West Papua, in what's been called an "exceptional" scientific discovery.

From BBC • Mar. 6, 2026

All were amazed at this demonstration, and at the sight of the baby dodos, too, for everyone knew that dodos were long extinct.

From "The Interrupted Tale" by Maryrose Wood

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.