ideologue

noun

ideo·​logue ˈī-dē-ə-ˌlȯg 

-ˌläg

variants or less commonly idealogue

1

: an often blindly partisan advocate or adherent of a particular ideology

2

: an impractical idealist : theorist

Synonyms of ideologue

• partisan
• militant
• activist
• crusader

Examples of ideologue in a Sentence

as long as there are ideologues controlling both sides of the aisle, legislative compromise is out of the question

the revolutionaries proved to be impractical ideologues who had no idea how to run a country

Recent Examples on the Web

The last time the Supreme Court weighed the question of birthright citizenship was a hundred and twenty-seven years ago, and that case was also engineered by a small group of ideologues in government hoping for a rewrite of the Fourteenth Amendment. —Rachel Morris, New Yorker, 14 Nov. 2025

Wales writes that governments, activists, and ideologues have sought to use the platform’s editing tools to push their worldview. —Harry Booth, Time, 9 Nov. 2025

All of Madrid’s eight Champions League trophies this century have been won by coaches renowned more as man-managers than tactical ideologues — two under Vicente del Bosque, three each with Zinedine Zidane and Ancelotti. —Dermot Corrigan, New York Times, 31 Oct. 2025

Meanwhile the Magisterium has come under the control of one Marcel Delamare, an ideologue who establishes a quasi-fascist regime in Britain. —Lev Grossman, The Atlantic, 23 Oct. 2025

Word History

Etymology

French idéologue, back-formation from idéologie

First Known Use

1815, in the meaning defined at sense 2