Heartbreaking (adjective)

1. Very sad and causing emotional pain.
2. Very disappointing and causing feelings of despair.

Origin:

The word heartbreaking is a combination of the word heart and breaking, both meaning emotional and physical pain.

Examples:

1. The news of his death was heartbreaking.
2. The heartbreaking poverty in the slums is hard to ignore.
3. It was heartbreaking to see her crying.
4. The heartbreaking loss of the game was hard to accept.
5. The heartbreaking story of the refugees touched everyone's heart.