Definition
To make someone more resistant to something.
In Context
- "Seeing so much suffering for so long hardened his heart."
- "She hardened her heart against his inevitable pleas."
- "And I will harden Pharaoh's heart, and multiply my signs and my wonders in the land of Egypt. But Pharaoh shall not hearken unto you, that I may lay my hand upon Egypt, and bring forth mine armies, and my people the children of Israel, out of the land of Egypt by great judgments."
- "Farrell had been to prison, and he thought the daily malignancy he had witnessed there had hardened his heart."