Superannuating is a word often used to describe the process of retiring from work due to age or ill health. However, there are many synonyms that can be used in place of this term to convey the same meaning. Some of these synonyms include retiring, stepping down, withdrawing, resigning, and departing. Other synonyms for superannuating include closing the book, throwing in the towel, calling it a day, and hanging up one's hat. These alternatives to superannuating allow individuals to express the same concept in a way that suits their writing style and tone, making for a more engaging and varied text.