conspiracy theorist

American  

[kuhn-speer-uh-see theer-ist] / kənˈspɪər ə si ˌθɪər ɪst /

noun

1. someone who believes in or promotes a conspiracy theory.

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Example Sentences

"This is just going to feed the fire if you are a conspiracy theorist," he said.

From BBC

But there’s a problem: Kennedy is a conspiracy theorist with seemingly little understanding of how modern science works.

From Slate

Vance, who she said had been a “conspiracy theorist for a decade,” said he had joked with Wiles about conspiracies in private before offering her praise.

From Los Angeles Times

Vice President JD Vance responded to allegations that he is a conspiracy theorist made by Susie Wiles.

From Salon

Beyond being ridiculous, experts say, having a conspiracy theorist leading the core work of a conspiracy theory–targeted entity could be dangerous.

From Slate