To be superannuated isn’t really super. This adjective comes from the Latin word “superannuatus,” which means “to be too old.” The verb “superannuate” means “to retire because of old age.” The adjective form “superannuated” describes anything forced out of service due to age. Nowadays this could get an employer in big trouble, but the word might still be used to talk about people going into retirement by choice. However, the term is most commonly used to describe tools and appliances being superannuated due to tech upgrades, such as smart features.