Synonyms for Superannuated (same or very similar meaning)
WordNet sense 1 (discharged as too old for use or work; especially with a pension):
retired
WordNet sense 2 (too old to be useful):
overage, overaged, over-the-hill, overage
WordNet sense 3 ((used especially of persons) having lived for a relatively long time or attained a specific age):
old
WordNet sense 4 (old; no longer in use or valid or fashionable):
obsolete, out-of-date, outdated
WordNet sense 5 (not current or belonging to the present time):
noncurrent
From the ODE community, based on WordNet
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