Similar word to oldtime:

ancient, antiquated, archaic, belated, dated, dead, defunct, departed, down memory lane, erstwhile, extinct, forgotten, former, gone, gone by, in oblivion, late, lost, of old, of yore, old-fashioned, old-time, olden, oldfangled, one-time, out-of-date, previous, quondam, sometime, vanished, water over the dam, water under the bridge