advantageous vs advantage

advantageous is not a noun while advantage is a noun.

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

advantageous (noun)	advantage (noun)
	the quality of having a superior or more favorable position
	benefit resulting from some event or action
	(tennis) first point scored after deuce

advantageous (adjective)	advantage (adjective)
giving an advantage
appropriate for achieving a particular end; implies a lack of concern for fairness

advantageous (verb)	advantage (verb)
	give an advantage to