noun

environmentalist

environmental campaigner, conservationist

He is a committed environmentalist.

He is a committed environmentalist.

Environmentalists protested against the new factory.

Environmentalists protested against the new factory.

(a/an) ~ a person who is concerned with protecting the environment He is a committed environmentalist.

Synonyms: conservationist, ecologist, green activist

From 'environmental' plus the suffix '-ist', which denotes a person who practices or is concerned with something.

The '-ist' suffix means 'a person'. Just like a 'pianist' plays the piano, an 'environmentalist' is a person concerned with the environment.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.