outworn

aging (or ageing), obsolescent

discarded, disused, inoperable, unusable, unworkable, useless

dead, defunct, expired, extinct, vanished

dormant, fallow, idle, inactive, inert, inoperative, latent

ancient, antediluvian, antique, dateless, fusty, musty, old

oldfangled, old-fashioned, old-time, retro, vintage

aged, age-old, hoary, venerable

bygone, erstwhile, former, historic, late, old-world, past