1. 和平分子：jazznik 爵士迷 | peacenik 和平分子 | protestnik 凡事抗议者

2. 反战分子：Folk music民乐 | Peacenik反战分子 | Devotee热爱者

3. 反战运动者：citynik 城市人,迷恋城市者 | peacenik 反战运动者 | filmnik 电影迷

1. 和平主义者；反战分子
If you describe someone as a peacenik, you mean that they are strongly opposed to war.

e.g. His campaign attracted the support of feminists, peaceniks and ecologists.
他发起的运动得到了女权主义者、反战分子和生态学家的支持。

noun

1. someone who prefers negotiations to armed conflict in the conduct of foreign relations

Synonym: dove