When we want to say that someone has been excused from a particular obligation or duty, there are a variety of words we can use to convey this meaning. One common synonym for "excused" is "dismissed," which implies a release from any further obligation or responsibility. Another possible word is "pardoned," which suggests that the person in question has been forgiven for their absence or failure to meet a requirement. We might also use "exempted" to convey the sense that someone has been given a special dispensation from a particular requirement or rule. Other synonyms for "excused" might include "released," "suspended," "waived," or "let off the hook".