treacherously Definition

traitorously, false, faithlessly, treasonably, dangerously, perilously, precariously, alarmingly, critically, wickedly, vilely, barbarously, foully, diabolically, pitilessly, shamefully, horribly, wretchedly, despicably, wantonly, brazenly, cruelly, craftily, cunningly, dreadfully, viciously, brutally, ruthlessly, inhumanly, abominably, villainously, deceptively, ignobly, carelessly, contemptibly, reprehensibly, proditorious, gloriously, bloodily, ineffably, gaspingly, trickily, devilishly, lugubriously, suavely, lethally, flimsily, jaggedly, tortuously, vengefully, outrageously, repugnantly, magnificently, noxiously, fecklessly, immutably, deliberately, mercilessly, irremediably, eternally, grotesquely, inexpertly, spectacularly, fearsomely, impeccably, murderously, luxuriantly, imperially, blackly, exasperatingly, deviously, lingeringly, sumptuously, ferociously, unforgivably, deliciously, silkily, lithely, brutishly, calculatingly, unforgivingly, joltingly, frightfully, unsportingly, messily, murkily, prettily, splendidly, obscenely, rawly, unworthily, implacably, remorselessly, marvelously, disagreeably, fussily, nobly, obsequiously, consummately, deplorably,