positive vs positiveness

positive and positiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
positive	Yes	Yes	No	No
positiveness	Yes	No	No	No

positive (noun)	positiveness (noun)
a film showing a photographic image whose tones correspond to those of the original subject	a quality or state characterized by certainty or acceptance or affirmation and dogmatic assertiveness
the primary form of an adjective or adverb; denotes a quality without qualification, comparison, or relation to increase or diminution	the quality of being encouraging or promising of a successful outcome
	the quality of being undeniable and not worth arguing about
	an amount greater than zero
	the character of the positive electric pole

positive (adjective)	positiveness (adjective)
characterized by or displaying affirmation or acceptance or certainty etc.
indicating existence or presence of a suspected condition or pathogen
reckoned, situated or tending in the direction which naturally or arbitrarily is taken to indicate increase or progress or onward motion
of or relating to positivism
involving advantage or good
persuaded of; very sure
having a positive charge
marked by excessive confidence
formally laid down or imposed
greater than zero
impossible to deny or disprove