tenderness vs compassionateness

tenderness and compassionateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
tenderness	Yes	No	No	No
compassionateness	Yes	No	No	No

As nouns, compassionateness is a hypernym of tenderness; that is, compassionateness is a word with a broader meaning than tenderness:

Other hypernyms of tenderness include compassion.

tenderness (noun)	compassionateness (noun)
a tendency to express warm and affectionate feeling	a deep awareness of and sympathy for another's suffering
a feeling of concern for the welfare of someone (especially someone defenseless)
a positive feeling of liking
warm compassionate feelings
a pain that is felt (as when the area is touched)