defunct

dih-FUNKT /dɪˈfʌŋkt/
adjectiveC1GRETOEFLIELTS
Formal

No longer existing or functioning.

Stronger than "obsolete" or "discontinued." It means something has completely ceased to exist or operate, often implying a permanent end. It's often used for organizations, systems, or practices.

The story behind the word. "Defunct" comes from the Latin word defunctus, which is the past participle of defungi, meaning "to perform, discharge, or finish." It literally means "having finished one's course" or "deceased." In English, it first referred to deceased persons, but by the 18th century, it expanded to describe things, organizations, or systems that had ceased to exist or function.

Word relationships

  • extinct: (Of a species, family, or other group of animals or plants) having no living members; no longer in existence.
  • non-existent: Not existing.
  • obsolete: No longer produced or used.
  • existing: Having actual being.
  • operational: In working order.
  • thriving: Prosperous and growing.

Commonly confused with

  • obsolete: "Defunct" means no longer existing or functioning at all. "Obsolete" means no longer produced or used, but the concept or item might still exist in some form or be theoretically functional.

Word family

  • function (noun/verb): the purpose or role of something; to work or operate.

Collocations

  • completely defunct
  • largely defunct
  • now defunct
  • defunct company
  • defunct system

Example sentences

  • "The once-popular video rental store is now completely defunct." Describing a past business.
  • "Many of the old railway lines are now defunct, replaced by highways." Referring to old infrastructure.
  • "The company's previous marketing strategy is now defunct, replaced by a digital-first approach." Discussing business strategy.

Memory hook

"DE-FUNCT" – it's de-activated, no longer functional. De-activated, no function

When not to use

Don't use "defunct" for something that is merely old or out of fashion but still exists or could function. It implies a complete cessation of existence or operation.

Fun facts

  • The original Latin sense of defunctus directly meant "dead," and this echoes in the finality of the English word when applied to systems or companies.

Related words

discontinue, obsolete

LangBlitz
Take your vocabulary further with LangBlitz

Our English vocabulary app: FSRS spaced repetition, 5,000+ curated words across 119 topic groups, CEFR A1 to C2. Explore your mastery with the beautiful Vocabulary World feature.