downheartedness vs dispiritedness

downheartedness and dispiritedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
downheartedness	Yes	No	No	No
dispiritedness	Yes	No	No	No

As nouns, downheartedness and dispiritedness are synonyms defined as:

Other synonyms of downheartedness include dejectedness, low-spiritedness, lowness.

downheartedness (noun)	dispiritedness (noun)
a feeling of low spirits	a feeling of low spirits