conjunct vs conjunctive

conjunct is not a noun while conjunctive is a noun.

Word	Noun	Adjective	Verb	Adverb
conjunct	No	Yes	No	No
conjunctive	Yes	Yes	No	No

As adjectives, conjunct and conjunctive are synonyms defined as:

Other synonyms of conjunct include concerted, cooperative, united.

conjunct (noun)	conjunctive (noun)
	an uninflected function word that serves to conjoin words or phrases or clauses or sentences

conjunct (adjective)	conjunctive (adjective)
progressing melodically by intervals of a second	serving or tending to connect
involving the joint activity of two or more	involving the joint activity of two or more
bound in close association