piti·less 
/ˈpɪtɪləs/ adjective
/ˈpɪtɪləs/ adjective [more pitiless; most pitiless] 1 : very cruel : having or showing no pity
▪ a pitiless [=merciless] ruler/critic ▪ The soldiers were pitiless toward their enemy. 2 : very harsh or severe
▪ the pitiless desert heat ▪ a pitiless storm
▪ a pitiless [=merciless] ruler/critic ▪ The soldiers were pitiless toward their enemy.
▪ the pitiless desert heat ▪ a pitiless storm
— piti·less·ly adverb
▪ pitilessly cruel
▪ pitilessly cruel
