concordance vs concordant

concordance is a noun but concordant is not a noun.

Word	Noun	Adjective	Verb	Adverb
concordance	Yes	No	No	No
concordant	No	Yes	No	No

concordance (noun)	concordant (noun)
an index of all main words in a book along with their immediate contexts
agreement of opinions
a harmonious state of things in general and of their properties (as of colors and sounds); congruity of parts with one another and with the whole

concordance (adjective)	concordant (adjective)
	being of the same opinion
	in keeping