Roistered is a word that describes reckless and boisterous behavior. If you're looking for some synonyms to use in place of roistered, you could consider words like caroused, frolicked, or reveled. These words all have a similar meaning to roistered, and can help you to convey the sense of uncontrolled jubilation or merrymaking that the word suggests. Other possible synonyms for roistered might include celebrated, indulged, or partied. Ultimately, the word you choose will depend on the context in which you're using it, as well as the tone and mood you're trying to create.