noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of theorist
Explanation
Someone who considers given facts and comes up with a possible explanation is called a theorist. Theorists observe various phenomena and use reasoning to come up with practical ideas that must be proven. Theorists come up with abstract ideas and then spend their lives trying to prove them. Perhaps the most famous theorist was Albert Einstein, whose theory of relativity is arguably the most famous ever presented. Still, an idea can always be disputed until proven, and theorists are often scoffed at. Einstein himself once said, "No one but a theorist believes his theory; everyone puts faith in a laboratory result but the experimenter himself."
Vocabulary lists containing theorist
Florida's B.E.S.T. Common Suffixes: -ist
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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:
Digging into the incident, Gibney says, would have meant “playing Elon’s game” — trying “to put the pieces together like a conspiracy theorist would do to make sense of the chaos.”
From Los Angeles Times ● Oct. 6, 2026
I suggested he sounded like a conspiracy theorist, implying the whole world was out to get him.
From BBC ● Sep. 3, 2026
They include four US House hopefuls and six candidates for governor, among them conspiracy theorist Mike Lindell in Minnesota.
From Barron's ● Aug. 30, 2026
The influencer said when people find out that she listens to Owens, they often mock her and call her a conspiracy theorist.
From Salon ● Aug. 26, 2026
To McCorkle, Sergeant Bloom had sounded a bit off-the-wall, a maverick theorist selling out the program.
From "Newjack: Guarding Sing Sing" by Ted Conover
These believers had, like so many conspiracy theorists before them, started from a place of legitimate suspicion of powerful institutions.
From Slate ● Sep. 22, 2026
The use of Q phrases by government agencies during wartime has excited online conspiracy theorists.
From Salon ● Aug. 28, 2026
“Still not sure what that means,” Sumner wrote on social media, “but some analytic number theorists seem excited.”
From The Wall Street Journal ● Aug. 15, 2026
The result gives nuclear theorists a new experimental benchmark and provides a strategy for investigating the phenomenon in additional nuclei.
From Science Daily ● Jul. 31, 2026
Greek theorists called the orbiting motions they observed in the night sky ‘the music of the spheres’.
From "The Story of Music" by Howard Goodall
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
