on the shelf (?.)

• abandoned
• abjured
• antiquated
• antique
• archaic
• deserted
• discontinued
• disused
• done with
• not worth saving
• obsolescent
• obsolete
• old
• old-fashioned
• out
• out of use
• out-of-date
• outdated
• outmoded
• outworn
• past use
• pensioned off
• relinquished
• renounced
• resigned
• retired
• superannuate
• superannuated
• superseded
• worn-out