Defunct (adjective) — مُنقرض أو مُتوقف: no longer existing, living, or functioning; having ceased to exist or operate; dead or obsolete Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
obsoletedeadabandonedinoperativeexpiredterminated
Not working; impossible to treat by surgery.
No longer trading because a company has closed or failed.