If something is superannuated, it means it is outdated or obsolete due to being old-fashioned or no longer useful in contemporary settings.
very old
A synonym of superannuated is ancient.
Superannuated has the synonyms outdated, outmoded, old-fashioned, or antiquated.
At the age of 70 years, my grandfather was superannuated from the Army.
A contemporary or modern antonym of superannuated could be "current" or "contemporary."
The superannuated man was indignant because he felt that he could still perform a good day's work.
The horse-drawn trolley is a superannuated form of transportation that is used in few parts of the world. Modern horror stories are often based on the superannuated belief in mythical creatures with magical or supernatural powers.
aged superannuated
dated, antiquated, outdated, old
Someone who is superannuated is considered as retired or obsolete, especially in terms of no longer being useful or effective in their job or profession.
superannuated
A property limiting age superannuated contract is an insurance policy that provides coverage only up to a certain age. Once the policyholder reaches a specific age, the coverage will either reduce or terminate completely. These types of contracts are designed to manage the risk exposure of the insurer as the policyholder ages.