Synonyms: over-the-hill, overage, overaged, superannuated
Definition: too old to be useful
Usage: He left the house...for the support of twelve superannuated wool carders- Anthony Trollope
Similar words: old
Definition: (used especially of persons) having lived for a relatively long time or attained a specific age
Usage: his mother is very old; a ripe old age; how old are you?