objector vs dissident

objector and dissident both are nouns.

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

As nouns, objector and dissident are synonyms defined as:

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

Other synonyms of objector include contestant, dissenter, protester.

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

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