Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “environmentalist”


noun [C]     /ɪnˌvaɪərənˈmentəlɪst/
someone who tries to protect the natural environment from being damagedEnvironmental issuesRubbish and wasteProtection and protectorsOccupations and tradesProtection and protectorsEnvironmental issues
(Definition of environmentalist noun from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “environmentalist” in other dictionaries

Word of the Day


to direct the way that a ship, aircraft, etc. will travel, or to find a direction across, along, or over an area of water or land, often by using a map

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More