/ Thesaurus / W Synonyms of willfully Find synonyms for: Adverb1. willfully, wilfullyusage: in a willful manner; "she had willfully deceived me"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language