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See more synonyms for defunct on Thesaurus.com
  1. no longer in effect or use; not operating or functioning: a defunct law; a defunct organization.
  2. no longer in existence; dead; extinct: a defunct person; a defunct tribe of Indians.
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  1. the defunct, the dead person referred to: the survivors of the defunct.
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Origin of defunct

1540–50; < Latin dēfunctus discharged, dead (past participle of dēfungī), equivalent to dē- de- + functus performed; see function
Related formsde·funct·ness, nounnon·de·funct, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for defunct

vanished, obsolete, nonexistent, asleep, bygone, cold, dead, deceased, departed, gone, inanimate, inoperative, invalid, kaput, late, lifeless, lost, exanimate, expired

Examples from the Web for defunct

Contemporary Examples of defunct

Historical Examples of defunct

British Dictionary definitions for defunct


  1. no longer living; dead or extinct
  2. no longer operative or valid
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Derived Formsdefunctive, adjectivedefunctness, noun

Word Origin for defunct

C16: from Latin dēfungī to discharge (one's obligations), die; see de-, function
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for defunct


1590s, from Old French defunct (14c., Modern French defunt) or directly from Latin defunctus "dead," literally "off-duty," from past participle of defungi "to discharge, finish," from de- "off, completely" (see de-) + fungi "perform or discharge duty," from PIE root *bheug- (2) "to enjoy" (see brook (v.)).

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Online Etymology Dictionary, © 2010 Douglas Harper