/ Thesaurus / E Synonyms of environmentalism Find synonyms for: Noun1. environmentalism, philosophical doctrine, philosophical theoryusage: the philosophical doctrine that environment is more important than heredity in determining intellectual growth2. environmentalism, preservation, savingusage: the activity of protecting the environment from pollution or destructionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language