activist

1 of 2

noun

ac·​tiv·​ist ˈak-ti-vist 

plural activists

: one who advocates or practices activism : a person who uses or supports strong actions (such as public protests) in support of or opposition to one side of a controversial issue

Antiwar activists were protesting in the streets.

an environmental activist

political activists

The conventional wisdom is that young people no longer care enough to stand up for what is important; that the days of activism and protest have faded into the past, the bailiwick of aging hippies and activists.

—The Easton (Massachusetts) Journal

activistic

ˌak-ti-ˈvi-stik 

adjective

What is news to me … is how much alike were the fears and concerns of both activistic Democrats and skeptical Republicans …

—Nathan Glazer

activist

2 of 2

adjective

: advocating or practicing activism : using or supporting strong actions in support of or opposition to one side of a controversial issue

For the activist groups that will carry the nomination fight to the public, the name of the game is hit early and often.

—Richard Lacayo

Pressing demands that are both global and granular, the activist investor has turned himself into one of the food sector's most influential players, affecting how millions of people eat each day.

—Julie Jargon

They plan to become activist shareholders who will protest global-warming resolutions and anything else that undermines corporate profitability.

—John J. Miller

Examples of activist in a Sentence

Recent Examples on the Web

Noun

Kirk’s zeal caught the attention of Bill Montgomery, a businessman and Tea Party activist, who urged him to forgo college and dedicate himself fully to political organizing. —Eric Cortellessa, Time, 11 Sep. 2025

Moments after it was confirmed that Charlie Kirk died from a gunshot wound during a college event Wednesday in Utah, several Arkansas political leaders went to social media to express their dismay over the conservative activist's death. —Ella McCarthy, Arkansas Online, 10 Sep. 2025

Adjective

Bill Holdings — Shares gained 3% after Reuters , citing sources familiar, said activist investor Starboard Value has nominated four directors, including one of its partners, to the board of Bill Holdings. —Fred Imbert, CNBC, 10 Sep. 2025

An activist group seeking to break Israel’s siege on Gaza by sea said one of its main boats was struck by a drone at a port in Tunisia Monday night, but all six passengers and crew are safe. —Dalia Abdelwahab, CNN Money, 9 Sep. 2025

Word History

First Known Use

Noun

1920, in the meaning defined above

Adjective

1917, in the meaning defined above

Kids Definition

activist

noun

ac·​tiv·​ist

ˈak-ti-vəst

: a person who believes in forceful action (as a mass demonstration) for political purposes

activism

-ˌviz-əm

noun