disadvantageous vs minus

disadvantageous is not a noun while minus is a noun.

Word	Noun	Adjective	Verb	Adverb
disadvantageous	No	Yes	No	No
minus	Yes	Yes	No	No

disadvantageous (noun)	minus (noun)
	an arithmetic operation in which the difference between two numbers is calculated

disadvantageous (adjective)	minus (adjective)
involving or creating circumstances detrimental to success or effectiveness	on the negative side or lower end of a scale
	involving disadvantage or harm