Inhumanity (6)
'inhumanity' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for cruelty that I've seen before include "Abuse" , "Extreme unkindness" , "Cutlery used in sadistic act" , "Deliberate infliction of pain" , "Inhumanity" .)
'inhumanity' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for sadism that I've seen before include "The love of cruelty" , "Enjoyment taken in inflicting pain or cruelty" , "The taking of pleasure in the infliction of pain" , "Delight taken in cruelty" , "Taking pleasure in cruelty" .)