heartiness vs wholeheartedness

heartiness and wholeheartedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
heartiness	Yes	No	No	No
wholeheartedness	Yes	No	No	No

As nouns, heartiness and wholeheartedness are synonyms defined as:

heartiness (noun)	wholeheartedness (noun)
the quality of hearty sincerity	the quality of hearty sincerity
active strength of body or mind	undivided commitment or unreserved enthusiasm