diabolically

ferociously fiercely mercilessly relentlessly ruthlessly savagely viciously

atrociously barbarically barbarously brutishly callously demoniacally ferally hardheartedly heartlessly in cold blood inexorably inhumanely inhumanly meanly murderously pitilessly remorselessly something fierce something terrible unkindly unrelentingly

gently humanely kindly nicely

extremely fiendishly horribly unbelievably

cruelly viciously

evilly

atrociously corruptly hatefully immorally

decently morally