indecisive vs indecisiveness

indecisive is not a noun while indecisiveness is a noun.

Word	Noun	Adjective	Verb	Adverb
indecisive	No	Yes	No	No
indecisiveness	Yes	No	No	No

indecisive (noun)	indecisiveness (noun)
	the trait of irresolution; a lack of firmness of character or purpose
	doubt concerning two or more possible alternatives or courses of action

indecisive (adjective)	indecisiveness (adjective)
not definitely settling something
characterized by lack of decision and firmness
not clearly defined