1. discharged as too old for use or work; especially with a pension;

"a superannuated civil servant"

2. too old to be useful;

"He left the house...for the support of twelve superannuated wool carders"- Anthony Trollope

3. old; no longer in use or valid or fashionable;

"obsolete words"

"an obsolete locomotive"

"outdated equipment"

"superannuated laws"

"out-of-date ideas"