perfidiously Definition

proditorious, treacherously, traitorly, lyingly, faithlessly, traitorously, disleal, dishonestly, deceitfully, maliciously, foully, beswike, impiously, malignly, disloyally, unscrupulously, basely, thievishly, cruelly, treasonably, cunningly, callously, ruthlessly, ingrately, brazenly, wantonly, unrighteously, calumniously, twistical, impudently, doublehearted, venally, despicably, craftily, insidiate, knavishly, lead astray, decipiency, prodition, villainously, insidiously, go back on, ignobly, unwarily, vilely, wilfully, manswear, mendaciously, immorally, shrewdly, iniquitously, trothless, falsely, fraudulently, willfully, scurvily, forlay, shamelessly, heartlessly, quarrelsomely, factiously, unjustly, despiteous, corruptly, unfeelingly, constructive fraud, underhandedly, pitilessly, viciously, villanize, wickedly, remorselessly, meanly, uglily, knowingly, underdealing, unfaithfully, flagrantly, nefariously, double dealer, reprehensibly, dastardness, unpatriotically, perversely, vindictively, barbarously, unequity, sneakily, bewrayer, evilly, spitefully, slyly, foolishly, sportively, extramarital sex, ungratefully, wittingly, cheatable, accusable, perniciously,