sadistic
adjective
[ səˈdɪstɪk ]
• deriving pleasure from inflicting pain, suffering, or humiliation on others.
• "she took a sadistic pleasure in tormenting him"
Similar:
callous,
barbarous,
bestial,
perverted,
vicious,
brutal,
cruel,
savage,
fiendish,
cold-blooded,
inhuman,
ruthless,
heartless,
merciless,
pitiless,