/ Thesaurus / F Synonyms of fearsomely Find synonyms for: Adverb1. fearsomelyusage: in a fearsome manner; "a sabre slammed fearsomely through the thicket in all directions"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: mongrel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language