/ Thesaurus / T Synonyms of truthfully Find synonyms for: Adverb1. truthfullyusage: with truth; "I told him truthfully that I had just returned from my vacation"; "he answered the question as truthfully as he could"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ravenous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language