That causes great grief, anguish or distress(adjective)
That elicits deep sympathy(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "heartrending" in a sentence
"A heartrending story written in heartrending style, compassionate and pinpoint accurate as usual."
"Stunning, charming, and heartrending is Michel Gagné's opening number, "Underworld," an entirely wordless piece about a brave little fox."
"He described the subsequent scene as "heartrending," adding that, were it up to him, he "would remove every Indian tomorrow beyond the reach of the white men who, like vultures, are watching, ready to pounce upon their prey and strip them of everything they have.""