The phrase "heartless person" is correct and usable in written English.
It can be used to describe someone who is perceived as lacking compassion or empathy.
Example: "After witnessing his cruel behavior towards the homeless, I couldn't help but think he was a heartless person."
Alternatives: "cold-hearted individual" or "unfeeling person".
"I don't want people to think that I'm a heartless person," he said.
I'm not a heartless person, but for those of us who work in high-end fashion, there are certain things we need to use.
At a stroke this heartless person – OK, it was me – stole from him everything that was best about his birthday: a night of anticipation, the breakfast-time delirium of the unwrapping, and (this was what upset him most) his pleasure at making his parents pleased by being pleased himself.
"I think Jack is a cold and heartless person," wrote K. Smith of Stanton.
If you're a facist, homophobe, warmonger or a heartless person with too much power, then it's likely Ed has socked it to you with a banner.
Even the most heartless person would have to recognize that ignoring the issues means multiplying the human and financial cost not only for the individual, but for all of us.
Ms. King, in a statement read aloud in court by one of her lawyers, Alice L. Fontier, apologized and said she was not "the heartless, cruel person that the government has accused me of being".
The film's central conceit was that Smith was such a heartless, appalling person, he simply would not give a frustrated Moore the time of day, let alone an interview.
Don't get me wrong, I'm not the heartless, inappropriate person who laughs at a funeral.
An insensitive, heartless, ordinary-person-embarrassing remark?
"Now imagine what kind of horrible, twisted, heartless monster a person could become after being exposed to a Horcrux, for, let's say, 10 YEARS".
