grief vs brokenheartedness

grief and brokenheartedness both are nouns.

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

As nouns, grief and brokenheartedness are synonyms defined as:

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

Other synonyms of grief include heartache, heartbreak.

grief (noun)	brokenheartedness (noun)
something that causes great unhappiness	intense sorrow caused by loss of a loved one (especially by death)
intense sorrow caused by loss of a loved one (especially by death)