dissident
US /ˈdɪsɪdənt/
・UK /ˈdɪsɪdənt/
B2
adjective
- Challenging a government's authority; rebelling
- Disagreeing with established religious or political system, organization, or belief.
- Opposing official policy.
noun
- Person challenging a government's authority; rebel
- A person who opposes official policy, especially that of an authoritarian state.