pitilessˈpɪt ɪ lɪs, ˈpɪt i-
pitiless, remorseless, ruthless, unpitying (adj)
without mercy or pity
"an act of ruthless ferocity"; "a monster of remorseless cruelty"
pitiless, unkind (adj)
deficient in humane and kindly feelings
having, or showing, no pity; merciless
having no kindly feelings; unkind