1. Too old to be useful
   - overage, superannuated, over-the-hill

See also: old

• parented
• parenteral
• parenterally
• parenthesis
• parenthesis-free notation
• parenthesise
• parenthesize
• parenthetic
• parenthetical
• parenthetical expression
• parenthetically
• parenthood
• parentless
• parer
• paresis
• paresthesia
• paretic
• Pareto
• pareve
• parfait
• parfait glass
• parfleche
• parfocal
• parget
• pargeting