dastardly Play adjectiveWicked and cruel. SYNONYMS abominableatrociousbadbarbarousbasebeastlyblackcorruptcrookedcrueldarkdegeneratedepraveddespicablediabolicdiabolicaldirtydishonestdishonourabledissoluteegregiousevilexecrablefiendishflagitiousfoulheinousiniquitouslowlow-downmalfeasantmeanmonstrousmurderousnefariousnot cricketoutrageousrascallyreprehensiblereprobateroguishrottenscoundrellyshadyshockingsordidstinkingunderhandunprincipledunscrupulousviciousvilevillainouswicked