dissident

1. N-COUNT Dissidents are people who disagree with and criticize their government, especially because it is undemocratic. 異議分子

...political dissidents. …政治異議分子。

2. ADJ Dissident people disagree with or criticize their government or a powerful organization they belong to. 持不同政見的[ADJ n]

...a dissident Russian novelist. …一位與政府意見相左的俄羅斯小說家。