pitiless
adj. 冷酷的,无情的;无同情心的
例句
He saw the pitiless eyes of his enemy.
他看到敌人眼中的冷酷无情。
《柯林斯英汉双解大词典》
A pitiless new day is dawning.
无情的新日已经露出了曙光。
The hollowing of that pitiless nail could be felt there.
已经可以感到那无情指甲的掐印。