/ Dictionary / Index H heartbreaking: Meaning and Definition of Find definitions for: heart•break•ing Pronunciation: (härt'brā"king), [key] — adj. causing intense anguish or sorrow. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heartbreaking (Thesaurus) heartbreaker heartbroken Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language