Bygone

Adjective

 * 1) Having been or happened in the far past.

Noun

 * 1) A person or occurrence that took place in the past.

Thesaurus
ago, antiquated, antique, archaic, belated, blown over, by, bypast, dated, dead, dead and buried, deceased, defunct, departed, elapsed, erstwhile, expired, extinct, finished, forgotten, former, gone, gone glimmering, gone-by, has-been, irrecoverable, lapsed, late, lost, no more, obsolete, of old, of yore, old, old-time, old-timey, olden, oldfangled, once, onetime, out-of-date, over, passe, passed, passed away, past, quondam, run out, sometime, vanished, whilom, wound up