/ Thesaurus / S Synonyms of slyly Find synonyms for: Adverb1. craftily, cunningly, foxily, knavishly, slyly, trickily, artfullyusage: in an artful manner; "he craftily arranged to be there when the decision was announced"; "had ever circumstances conspired so cunningly?"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