(a.) Being out of date; antiquated.

abandoned abjured antiquated antique archaic back-number behind the times dated deserted discontinued disused done with has-been not worth saving obsolescent obsolete old old hat old-fashioned old-timey oldfangled on the shelf out out of fashion out of season out of use out-of-date outmoded outworn past use pensioned off relinquished renounced resigned retired styleless superannuate superannuated superseded unfashionable worn-out