Other forms: heartbreakingly
Something that's deeply sad or distressing is heartbreaking, like the heartbreaking death of your beloved cat.
Heartbreaking is the perfect word to describe a devastating feeling. When you lose someone you love, it feels like your heart is broken. Use this adjective for anything that causes you grief or sorrow, like the heartbreaking loss of an old tree in your yard or a glimpse of your crush holding hands with someone else. Other distressing events can feel heartbreaking too — even the loss of your favorite team in the playoffs: "What a heartbreaking defeat!"