/ Thesaurus / M Synonyms of malignantly Find synonyms for: Adverb1. malignantlyusage: in a malignant manner, as of a tumor that spreadsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language