hard-hearted sir无情先生
hard-hearted woman无情女子
The Hard-Hearted执行者
Hard-'hearted铁石心肠
hard-hearted lady无情小姐
a hard-hearted person冷酷的人
hard-hearted of stone无情的
The Hard-Hearted Princess铁石心肠的公主
hard-hearted busine man斤斤计较的人
ADJ（形容词） If you describe someone as hard-hearted, you disapprove of the fact that they have no sympathy for other people and do not care if people are hurt or made unhappy. 铁石心肠的; 麻木不仁的[表不满]
You would have to be pretty hard-hearted not to feel something for him.
你必须是非常铁石心肠才能对他没有一点同情。