discontinued (adj.)
- abandoned
- antiquated
- antique
- archaic
- broken
- choppy
- deserted
- disconnected
- discontinuous
- discrete
- disjunctive
- disused
- episodic
- fitful
- incoherent
- intermittent
- interrupted
- irregular
- jagged
- jerky
- noncontinuous
- nonlinear
- nonuniform
- obsolescent
- obsolete
- old
- old-fashioned
- out
- out-of-date
- outdated
- outmoded
- parenthetic
- patchy
- relinquished
- retired
- scrappy
- spasmodic
- spotty
- superannuated
- suspended
- unconnected
- worn-out