Definition of "hard-heartedness" [hard-heartedness]
The character of being hard-hearted; want of feeling or tenderness; cruelty; inhumanity.(noun)
The Century Dictionary (Public Domain)
Use "hard-heartedness" in a sentence
"The leads were allowed to be most heavyhearted — say, after having to take out a foe whose humanity was briefly glimpsed — but hard-heartedness was kept generally to the casting margins, or acknowledged under the cover of exigency."
"Put away the self-defeating behavior of hard-heartedness that has you enslaved by thanking Jesus for forgiving you."
"Unlike the effects of alcoholism, you will not develop cirrhosis of the liver—just hard-heartedness, which can be equally detrimental to your health."