Bygone

1. (a.) Past; gone by.

2. (n.) Something gone by or past; a past event.

Thesaurus Entries

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lapsed, late, lost, no more, obsolete, of old, of yore, old, old-time, old-timey, olden, oldfangled, once, onetime, out-of-date, over, passe, passed, passed away, past, quondam, run out, sometime, vanished, whilom, wound up