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.

It is not uncommon for the units to train at defunct malls or abandoned businesses in Los Angeles County.

From Los Angeles Times • Jun. 6, 2026

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

It went on to expand its wares to other appliances such as garbage disposals and clothes dryers, outlasting rivals that were bought out or went defunct.

From The Wall Street Journal • May 8, 2026

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

From MarketWatch • May 6, 2026

Soon, all three of us were decked out like walking advertisements for the defunct theme park.

From "The Lightning Thief" by Rick Riordan

Vocabulary lists containing defunct

300 Most Difficult "SAT" Words

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Grade 9, List 2

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The Lightning Thief

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