HEARTBREAKINGLY
Scrabble letter values: H4E1A1R1T1B3R1E1A1K5I1N1G2L1Y4 = 28
Definition
HEARTBREAKINGLY is the adverb form of HEARTBREAKING.
adjective HEARTBREAKING: causing or marked by grief or anguish.
Synonyms of HEARTBREAKING: grievous, heartrending