positiveness vs positive

positiveness and positive both are nouns.

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

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

positiveness (adjective)	positive (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