/ Thesaurus / R Synonyms of rottenly Find synonyms for: Adverb1. terribly, atrociously, awfully, abominably, abysmally, rottenlyusage: in a terrible manner; "she sings terribly"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: coincidence Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language