1. 冷酷的：remorsefully 极为懊悔地 | remorseless 冷酷的 | remorselessly 冷酷地

2. 无情的：remediless不能纠正的 | remorseless无情的 | resistless无法抵抗的

3. 无慈悲的：remorsefully 极为后悔地 | remorseless 无慈悲的 | remorseless 不知过错的

4. 不知过错的：remorseless 无慈悲的 | remorseless 不知过错的 | remorserepentancecompunction 悔恨

1. (尤指令人不快的事情)无休止的，持续不断的，不停的
    If you describe something, especially something unpleasant, as remorseless, you mean that it goes on for a long time and cannot be stopped.

    e.g. ...the remorseless pressure of recession and financial constraint.
           无休止的经济不景气和金融紧缩措施的压力
    e.g. ...General Sherman''s remorseless progress through Georgia.
           谢尔曼将军在佐治亚州不屈不挠的前进

2. 无怜悯之心的;冷酷的
    Someone who is remorseless is prepared to be cruel to other people and feels no pity for them.

    e.g. ...the capacity for quick, remorseless violence.
           迅速而冷酷地诉诸暴力的能力
    e.g. ...remorseless thieves.
           毫无怜悯之心的窃贼

1. without mercy or pity

    e.g. an act of ruthless ferocity
           a monster of remorseless cruelty

    Synonym: pitilessruthlessunpitying