activist[noun]Synonyms: militant, organizer, partisan
[TahlilGaran] English Synonym Dictionary ▲
ac‧tiv‧ist S3 /ˈæktəvəst, ˈæktɪvəst/
noun [countable] someone who works hard doing practical things to achieve social or political change
political/gay/animal rights etc activist—activist adjective [only before noun]:
activist groups [TahlilGaran] Dictionary of Contemporary English ▲