n. The condition of being superannuated; disqualification on account of old age; of persons, senility; decrepitude.n. The state of being superannuated, or removed from office, employment, or the like, and receiving an allowance on account of long service or of old age or infirmity; also, a pension or allowance granted on such account. Also used attributively: as, a superannuation list.n. The state of having lived beyond the normal period.n. Antiquated character.