/sooh'peuhr an"yooh ay'tid/ , adj.
1. retired because of age or infirmity.
2. too old for use, work, service, or a position.
3. antiquated or obsolete: superannuated ideas.
[ 1625-35; alter. (with -u- of ANNUAL) of ML superannatus over a year old (said of cattle), equiv. to super ann ( um ) beyond a year + -atus -ATE 1 ; see -ED 2 ]