Here's what rhymes with perfidious.
tedious Words that almost rhyme with perfidious
medias cyclopaedias cyclopedias encyclopedias encyclopaedias devious mediates vitiates freesias previous obedience deviance leakiness cheekiness sleaziness sneakiness steeliness wheeziness disobedience uneasiness intermediates obsequious prescience sleepiness deviants dreariness expedience greasiness novitiates queasiness breeziness creakiness squeakiness homogeneous expedients beastliness unwieldiness ingredients priestliness inexpedience inhomogeneous gastrocnemius