defunct

[dih-fuhngkt] / dɪˈfʌŋkt /

ADJECTIVE

extinct, not functioning

Synonyms

STRONGEST

nonexistent obsolete vanished

WEAK

asleep bygone cold dead deceased departed done for down the drain exanimate expired gone had it inanimate inoperative invalid kaput late lifeless lost out of commission

Antonyms

WEAK

alive existent existing functioning live operating operative valid working

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.

There were separate concerns raised in the process about potential commercial conflicts of interest arising because of clients of Lord Mandelson's now defunct consulting firm Global Counsel.

From BBC • Jun. 1, 2026

Now, customers of the defunct budget carrier are mourning the sub-$100 plane ticket that has virtually disappeared.

From MarketWatch • May 6, 2026

While it’s defunct now, CosMc’s helped McDonald’s gain insights into what resonates with customers and what doesn’t.

From Barron's • Apr. 13, 2026

Upon purchase of the racetrack, which was defunct and non-operational, the property-tax assessment increased significantly.

From The Wall Street Journal • Apr. 1, 2026

Soon after arriving in Qosqo, Pizarro's companion Miguel de Estete saw a parade of defunct emperors.

From "1491" by Charles C. Mann

Vocabulary lists containing defunct

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Grade 9, List 2

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The Lightning Thief

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