1. having a heart of iron; extremely hard, cruel, or unfeeling
Usage: literary or formal; often used to describe someone who is unmoved by emotion or suffering

Examples

• The ironhearted dictator showed no mercy to his enemies.
• She was ironhearted in her business dealings, never letting sentiment interfere with profit.
• His ironhearted response to her pleas for help shocked everyone in the room.
• The villain's ironhearted nature made him incapable of love or forgiveness.
• Despite her ironhearted reputation, she secretly donated to charity.
• An ironhearted judge sentenced him without hesitation or sympathy.