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Word of the Day Tuesday, June 9, 2026

rationalist

/ˌreɪʃəˈnælɪst/ noun · British & US
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What does rationalist mean?

noun

A person who believes in the use of reason as the primary source of knowledge and truth. A rationalist is someone who relies on logic and evidence to make decisions and form opinions.

Example

"The philosopher was a well-known rationalist who argued that the universe could be understood through reason alone."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for rationalist

Antonyms of rationalist

Rhymes with rationalist

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