Causing overwhelming grief or distress.(adjective)
Producing a strong emotional reaction: heartbreaking loveliness. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "heartbreaking" in a sentence
"And the title story, “Jesus Out To Sea,” is just plain heartbreaking, no matter how many times you read it."
"Virginia (5-4, 3-2) had its four-game winning streak end, and in heartbreaking fashion, too, after shutting down the ACC's best scoring offense until the very end."
"Also heartbreaking is the moment when he's kneeling in front of her, holding her as he must have done as a child, with his head in her lap, so upset -- and we feel the full effect of his estrangement from her."