'activist' definitions:
Definition of 'activist'
From: WordNet
adjective
Advocating or engaged in activism [syn: activist, activistic]
noun
A militant reformer [syn: militant, activist]
Synonyms of 'activist'
From: Moby Thesaurus
- ball of fire,
- beaver,
- big-time operator,
- bustler,
- busy bee,
- doer,
- eager beaver,
- enthusiast,
- go-getter,
- human dynamo,
- hustler,
- live wire,
- man of action,
- man of deeds,
- militant,
- new broom,
- operator,
- political activist,
- powerhouse,
- take-charge guy,
- wheeler-dealer,
- winner