- The definition of an activist is someone who works to support a cause.
An example of an activist is someone who hands out pamphlets about environmental issues, reduces the amount of water, electric and gas that he/she uses and makes powerful speeches about the ways in which people need to take care of the environment.
- Of, relating to, or engaged in activism.
- Of, relating to, or being an activist.
(comparative more activist, superlative most activist)
- Behaving as an activist.
active +â€Ž -ist
Variant of activism