/ Thesaurus / F Synonyms of formidably Find synonyms for: Adverb1. formidablyusage: in a formidable manner; "the constant risk that attends the exchanges of human beings formidably armed"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language