diabolically Synonyms

fiendishly devilishly mercilessly callously deucedly viciously lamentably brutishly appallingly imperfectly amateurishly inexpertly inadequately terribly rottenly pitilessly cold-fistedly satanically very badly ruthlessly roguishly pitifully relentlessly hellishly fiercely ferociously ferally execrably deficiently defectively crummily barbarically atrociously wickedly dreadfully dismally direly devilish deplorably demoniacally cruelly corruptly confoundedly brutely brutally bestially barbarously awfully egregiously evilly