The definition of defunct is a person or thing that no longer lives or exists.adjective
- An example of defunct are dinosaurs.
- An example of defunct is the Soviet Union.
Origin: L defunctus, pp. of defungi, to do, finish, die < de-, from, off + fungi, to perform: see de- & function
Used by arrangement with John Wiley & Sons, Inc.
Origin: Latin dēfūnctus, past participle of dēfungī, to finish : dē-, de- + fungī, to perform.
- de·funcˈtive adjective
- de·functˈness noun