defunct
/dɪˈfʌŋkt/ (bre, ipa) · /dɪˈfʌŋkt/ (ame, ipa) · /di-ˈfəŋkt dē-/ (ame, mw)
defunct — adjective
- defunctpositive
- more defunctcomparative
- most defunctsuperlative
1. A business, law, machine, or body part that is defunct has stopped existing, wor
A business, law, machine, or body part that is defunct has stopped existing, working, or being used.
The local newspaper became defunct after twenty years of falling sales.
become + defunct (change of state)
Few residents remember the defunct railway that once served this town.
attributive use: defunct + noun
Wei's old laptop is now defunct — it stopped turning on last month.
The doctor explained that part of Elena's kidney was defunct after the infection.
Omar tried to revive his defunct smartphone with a new battery, but it still would not start.
- extinct
used for species, not for organizations or machines
- inoperative
more technical; can describe a temporary state, while defunct implies permanence
- obsolete
focuses on being outdated rather than non-functional; an obsolete device may still work
- inactive
suggests a temporary pause rather than permanent cessation
- functioning
working correctly
- operative
in working order; often used for laws or machinery
- active
currently in use or operation
文法句型
be + defunct
become + defunct
defunct + noun
用法筆記
Commonly used for organizations, systems, laws, or machines that have stopped operating permanently. For species that no longer exist, 'extinct' is the standard word; for a dead organism, 'dead' is more natural.