(a.) No longer used or accepted; as an obsolete word\.

abandoned abjured ago ancient antediluvian antiquate antiquated antique archaic behind the times blown over by bygone bypast dated dead dead and buried deceased defunct demode departed deserted discarded discontinued disused done with elapsed expired extinct finished forgotten gone gone glimmering gone out gone-by has-been hors de combat irrecoverable lapsed no more not worth saving obsolesce obsolescent off the field old old hat old-fashioned old-time old-timey on the shelf out out of commission out of date out of fashion out of gear out of style out of use out-of-date outdated outmoded outworn over passe passed passed away past past use pensioned off relinquished renounced resigned retired run out superannuate superannuated superseded unused vanished worn-out wound up