dissident

From King Dictionary of Contemporary English
Related topics: Groupings
dissidentdis‧si‧dent /ˈdɪsɪdənt/ noun [countable] PPGsomeone who publicly criticizes the government in a country where this is punished a political dissidentdissident adjective [only before noun] dissident writersdissidence noun [uncountable]
Origin dissident (1500-1600) Latin dissidere to sit apart, disagree, from sedere to sit