indirectness vs indirect

indirectness is a noun but indirect is not a noun.

Word	Noun	Adjective	Verb	Adverb
indirectness	Yes	No	No	No
indirect	No	Yes	No	No

indirectness (noun)	indirect (noun)
having the characteristic of lacking a true course toward a goal

indirectness (adjective)	indirect (adjective)
	not direct in spatial dimension; not leading by a straight line or course to a destination
	extended senses; not direct in manner or language or behavior or action
	descended from a common ancestor but through different lines
	having intervening factors or persons or influences
	not as a direct effect or consequence