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ideologue

American

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

noun

a person who zealously advocates an ideology.

Etymology

Origin of ideologue

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

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.

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

In 2022, U.S. intelligence agencies concluded that Kyiv was responsible for the killing of Daria Dugina, the daughter of a prominent far-right Russian ideologue.

From The Wall Street Journal • Dec. 22, 2025

Crooks reportedly went from being a pro-Trump to an anti-Trump ideologue, but appeared to go dark online afterward.

From Salon • Nov. 19, 2025

"We don't offer that as some humanitarian effort. It was, as with everything else Mr Roussev does, fixing for money. Mr Roussev is not an anti-western ideologue."

From BBC • May 9, 2025

He was not an ideologue, but a pragmatist, a man who saw change as necessary and inevitable.

From "Long Walk to Freedom" by Nelson Mandela

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023