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Definitions

rationalist

[rash-uhn-uhl-ist] / ˈræʃ ən əl ɪst /
NOUN
realist
Synonyms




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.

See Examples For:

But inside the brain trusts of Silicon Valley, billions of investor dollars and years of tortured rationalist arguments are clouding a similar argument about artificial intelligence.

From Salon ● Sep. 12, 2026

Underneath it all is Roko’s Basilisk, a thought experiment that originated on the online rationalist forum LessWrong and has proved genuinely radicalizing.

From The Wall Street Journal ● Jun. 4, 2026

In 2022, a warrant was issued when Lasota failed to show up for a court hearing, related to the protest outside the rationalist organisation meeting.

From BBC ● Feb. 20, 2025

Intriguingly, a few informal but large surveys from the rationalist community suggest that both complete monogamy and complete polyamory tend to be more satisfying than the “monogamish” middle ground.

From Slate ● May 5, 2024

On most questions Descartes is a rationalist, but as far as the laws of nature are concerned he appears to want to have it both ways.

From "The Invention of Science" by David Wootton

Coxon after college fell in with a small but influential community of rationalists seeking to remake the British government.

From The Wall Street Journal ● Sep. 17, 2026

This represents one of the oldest debates in human thought: rationalists vs. empiricists.

From Slate ● Sep. 26, 2025

Lasota began blogging using the alias "Ziz", but soon fell out with mainstream rationalists as her writings spun off in bizarre directions.

From BBC ● Feb. 20, 2025

They include atheists, agnostics, the culturally religious but not observant, rationalists and the spiritual but not religious.

From Seattle Times ● Oct. 4, 2023

The existence of this romantic tendency constitutes at least a small part of the emotional makeup of most mathematicians, and is perhaps surprising to those who think of mathematicians as cold rationalists.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos




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