accordant vs concordant

accordant and concordant both are adjectives.

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

As adjectives, accordant and concordant are synonyms defined as:

Other synonyms of accordant include agreeable, conformable, consonant.

accordant (adjective)	concordant (adjective)
being in agreement or harmony; often followed by `with'	being of the same opinion
in keeping	in keeping