16 possible answers to
Answers with 4 characters: FELL IRON MEAN Answers with 5 characters: HARSH SADIC Answers with 6 characters: SAVAGE UNKIND Answers with 7 characters: INHUMAN ABUSIVE Answers with 8 characters: FIENDISH RUTHLESS INHUMANE SADISTIC Answers with 10 characters: CANNIBALIC IRONHANDED Answers with 11 characters: HEARTLESS-2