advantageousness vs advantage

advantageousness and advantage both are nouns.

Word	Noun	Adjective	Verb	Adverb
advantageousness	Yes	No	No	No
advantage	Yes	No	Yes	No

As nouns, advantage is a hypernym of advantageousness; that is, advantage is a word with a broader meaning than advantageousness:

advantageousness: the quality of being encouraging or promising of a successful outcome
advantage: the quality of having a superior or more favorable position

Other hypernyms of advantageousness include vantage.

advantageousness (noun)	advantage (noun)
the quality of being encouraging or promising of a successful outcome	the quality of having a superior or more favorable position
	benefit resulting from some event or action
	(tennis) first point scored after deuce

advantageousness (verb)	advantage (verb)
	give an advantage to