activist

American  

[ak-tuh-vist] / ˈæk tə vɪst /

noun

1. an especially active, vigorous advocate of a cause, especially a political cause.

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adjective

1. of or relating to activism or activists.

   an activist organization for environmental concern.

2. advocating or opposing a cause or issue vigorously, especially a political cause.

   Activist opponents of the president picketed the White House.

Usage

What does activist mean? An activist is a person who engages in activism—the practice of taking direct action to achieve political or social goals. An activist may support a particular cause (or range of causes) or oppose it. In any case, an activist tries to achieve such goals through direct (and continued) actions, such as protests, lawsuits, lobbying, petitions, and strikes. The word activist implies that the person takes such actions consistently—that they are consistently active in these pursuits. For example, protesting is a form of activism, but someone who attends one protest probably wouldn’t be called an activist (unless they continue to take such actions). The word activist is often preceded by a word referring to the kind of cause the activist is involved in, as in political activist or animal rights activist. It can also be used as an adjective to describe such people or their activities, as in activist lawyer or activist organization. Example: The prominent activist is known for organizing this summer’s mass protests.

Other Word Forms

• nonactivist
  adjective

Etymology

Origin of activist

First recorded in 1905–10; active + -ist

Explanation

An activist is a person who campaigns for some kind of social change. When you participate in a march protesting the closing of a neighborhood library, you're an activist. Someone who's actively involved in a protest or a political or social cause can be called an activist. Demonstrations, strikes, and sit-ins are all ways that an activist might work toward the change she believes in. The root word of activist is the Latin actus, "a doing, a driving force, or an impulse." Someone who acts on what she believes is an activist.

Example Sentences

Animal rights activist Wayne Hsiung employs an “open rescue” strategy, openly taking animals from facilities to fight charges publicly.

From The Wall Street Journal • May 7, 2026

Now, actress and activist Kilcher has claimed Cameron "extracted, replicated, and commercially deployed her facial likeness" for Neytiri's design, accusing him and Disney of violating her publicity rights.

From BBC • May 7, 2026

I found online memes from Amar Shergill — a Steyer supporter and activist I respect who formerly chaired the California Democratic Party’s Progressive Caucus — including his charts comparing the Democratic field.

From Salon • May 6, 2026

Huang, a progressive community activist, said she is performing well with younger voters, who are not traditionally polled as frequently since they are less likely to show up to vote.

From Los Angeles Times • May 5, 2026

Jayme and Taylor teamed up and won the state history day contest in 2009, and took ninth place in nationals for a project on Joe Hill, a labor activist.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel

Related Words

• combatant
• demonstrator
• fighter
• protester
• rioter