environmentalism

noun

en·​vi·​ron·​men·​tal·​ism in-ˌvī-rə(n)-ˈmen-tə-ˌli-zəm 

-ˌvī(-ə)r(n)-

1

: a political and social movement focused on the preservation, restoration, and improvement of the natural environment

I urge the community to renew our commitment to environmentalism by focusing on the defining issue of our generation: global warming.

—Dan Wolk

She had embraced environmentalism as a college student, then worked with various NGOs to reduce China's air and water pollution …

—Lin Yang

Here in the heavy industry heartland of Colombia, environmentalism has old roots and has endured through decades of violence and intimidation.

—Fatima Garcia Elena

2

dated : a theory that views environment rather than heredity as the important factor in the development and especially the cultural and intellectual development of an individual or group

… an extreme environmentalism developed in psychology and anthropology which minimized, if not denied altogether, any genetic contribution to the differences among human individuals.

—Ernst Mayr

Examples of environmentalism in a Sentence

Recent Examples on the Web

Her intelligence is that vital and exacting, her wit that mischievous, her concerns – feminism, environmentalism, dystopian societies – that urgently relevant. —Literary Hub, 10 July 2025

Avatar is very much a look at environmentalism, and ravaging natural resources for greed and corruption. —Mike Fleming Jr, Deadline, 27 June 2025

Clearly, efficiency and environmentalism took a backseat to performance for this hybrid. —Michael Teo Van Runkle, ArsTechnica, 17 June 2025

All court justices appeared to acknowledge that there is a big difference between responsible environmentalism and environmental obstructionism. —Saleem H. Ali, Forbes.com, 30 May 2025

Word History

First Known Use

1917, in the meaning defined at sense 2

Phrases Containing environmentalism

• anti-environmentalism

Rhymes for environmentalism

• abolitionism
• aldosteronism
• americanism
• anticommunism
• antisemitism
• antiterrorism
• bioterrorism
• colloquialism
• colonialism
• consequentialism
• contextualism
• conventionalism

Kids Definition

environmentalism

noun

en·​vi·​ron·​men·​tal·​ism -ˌvī-rən-ˈment-ᵊl-ˌi-zəm 

-ˌvī(-ə)rn-

: the act or process of preserving, restoring, or improving the natural environment

Medical Definition

environmentalism

noun

en·​vi·​ron·​men·​tal·​ism -ˌvī-rən-ˈment-ᵊl-ˌiz-əm, -ˌvī(-ə)rn- 

: a theory that views environment rather than heredity as the important factor in the development and especially the cultural and intellectual development of an individual or group