infatuation vs passionateness

infatuation and passionateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
infatuation	Yes	No	No	No
passionateness	Yes	No	No	No

As nouns, passionateness is a hypernym of infatuation; that is, passionateness is a word with a broader meaning than infatuation:

infatuation: a foolish and usually extravagant passion or love or admiration
passionateness: a strong feeling or emotion

Other hypernyms of infatuation include passion.

infatuation (noun)	passionateness (noun)
an object of extravagant short-lived passion	a strong feeling or emotion
a foolish and usually extravagant passion or love or admiration
temporary love of an adolescent