heartbreak vs brokenheartedness

heartbreak and brokenheartedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
heartbreak	Yes	No	No	No
brokenheartedness	Yes	No	No	No

As nouns, heartbreak and brokenheartedness are synonyms defined as:

heartbreak and brokenheartedness: intense sorrow caused by loss of a loved one (especially by death)

Other synonyms of heartbreak include grief, heartache.

heartbreak (noun)	brokenheartedness (noun)
intense sorrow caused by loss of a loved one (especially by death)	intense sorrow caused by loss of a loved one (especially by death)