dissident vs dissenter

dissident and dissenter both are nouns.

Word	Noun	Adjective	Verb	Adverb
dissident	Yes	Yes	No	No
dissenter	Yes	No	No	No

As nouns, dissident and dissenter are synonyms defined as:

dissident and dissenter: a person who dissents from some established policy

Other synonyms of dissident include contestant, objector, protester.

dissident (noun)	dissenter (noun)
a person who dissents from some established policy	a person who dissents from some established policy

dissident (adjective)	dissenter (adjective)
disagreeing, especially with a majority
characterized by departure from accepted beliefs or standards