conjunctive vs conjunct

conjunctive is a noun but conjunct is not a noun.

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

As adjectives, conjunctive and conjunct are synonyms defined as:

Other synonyms of conjunctive include concerted, cooperative, united.

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

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