Synonym of agitator (“one who stirs up or excites others, for example political reformers”)
A person who formally opposes the current political structure, the political group in power, the policies of the political group in power, or current laws.
One who disagrees or dissents; one who separates from the established religion.
Sometimes Dissident: in the kingdom of Poland, the name for Christians not part of the Roman Catholic Church.
In a manner that disagrees; dissenting; discordant.