concerned vs interested

concerned and interested both are adjectives.

Word	Noun	Adjective	Verb	Adverb
concerned	No	Yes	No	No
interested	No	Yes	No	No

As adjectives, concerned and interested are synonyms defined as:

concerned and interested: involved in or affected by or having a claim to or share in

concerned (adjective)	interested (adjective)
feeling or showing worry or solicitude	having or showing interest; especially curiosity or fascination or concern
involved in or affected by or having a claim to or share in	involved in or affected by or having a claim to or share in
culpably involved