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ideologue

American  
[ahy-dee-uh-lawg, -log, id-ee-, ahy-dee-] / ˈaɪ di əˌlɔg, -ˌlɒg, ˈɪd i-, aɪˈdi- /

noun

  1. a person who zealously advocates an ideology.


Etymology

Origin of ideologue

1805–15; < French idéologue; ideo-, -logue

Explanation

An ideologue is someone who has very strong beliefs or opinions and stubbornly sticks to them no matter what. An ideologue will insist they're right even when evidence suggests they might be wrong. If you call someone an ideologue, it's an insult. You're not just saying they believe in something, but that their belief is unreasonable and unbending. An ideologue can't have a thoughtful discussion about a topic, and they aren’t able to consider other perspectives. Ideologue derives from the Greek idea, "form," and logos, "word or speech."

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Vocabulary lists containing ideologue

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Blanche may or may not be an ideologue; his history is vague in that regard.

From Salon • Apr. 12, 2026

Rubio, who is seen as less of an ideologue, will lead the US delegation to the annual security and defense talks, which run through Sunday in the Bavarian capital.

From Barron's • Feb. 12, 2026

Mr. Howard’s argument, which I find persuasive, is that Cowley’s stint as an ideologue was a short-term folly that does not fundamentally implicate his literary endeavors.

From The Wall Street Journal • Nov. 7, 2025

"He's much more of a pragmatist than an ideologue," said James Orr, associate professor of philosophy of religion at the University of Cambridge and a friend whom Vance has described as his "British sherpa".

From BBC • Mar. 10, 2025

He was the ideologue who made his students bum with the flame that in most of them extinguished itself as soon as they graduated and joined the world they had once hoped to change.

From "The House of the Spirits: A Novel" by Isabel Allende