theorist

noun

the·​o·​rist ˈthē-ə-rist 

ˈthir-ist

: a person who theorizes

Examples of theorist in a Sentence

Recent Examples on the Web

Finding more of them should provide important clues about just what that history looks like, says Tousif Islam, a theorist at the University of California, Santa Barbara’s Kavli Institute for Theoretical Physics. — Mary Randolph, Scientific American, 29 July 2026

The theorists instructed that no single person, institution, or government can fully control the narrative about our world; language is far too unstable, self-aware, and contradictory for that. — Emily Eakin, Harpers Magazine, 28 July 2026

The hotel’s design concept weaves a story around the fictional historic Lamarck University, an homage to the French evolutionary theorist, which was supposedly founded in 1894, then abandoned in the 1940s, and ultimately restored by Marriott. — Condé Nast, Condé Nast Traveler, 15 July 2026

Alien theorists have considered this spot to be a sort of maritime Area 51. — Andrea Romano, Travel + Leisure, 15 July 2026

Word History

First Known Use

1588, in the meaning defined above

Phrases Containing theorist

• conspiracy theorist

Kids Definition

theorist

noun

the·​o·​rist ˈthē-ə-rəst 

ˈthi(-ə)r-əst

: a person who theorizes