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Definition of factoid

factoid

/ˈfæk.tɔɪd/
fac · toid

Plural:factoids
•
Adjective:factoidal
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factoid Lexical Profile

factoid Game Scores & Validity

• noun

1

An assumption or speculative statement that is reported and repeated so often that it comes to be accepted as a fact, despite being unverified or false.

Example

"The claim that humans use only ten percent of their brains is a persistent factoid with no basis in neuroscience."


2

A brief or trivial item of true information.

Example

"The travel guide is filled with entertaining factoids about the city's architecture and history."

Synonyms
View all synonyms for factoid

Word Nuance & Usage

Originally coined to mean an invented or unverified statement repeated until accepted as true, "factoid" is now widely used in informal contexts to mean a brief, trivial piece of true information. Careful writers often avoid the second sense to prevent ambiguity.

• Rhymes for factoid

Word Origin & Etymology

Coined by American author Norman Mailer in his 1973 biography of Marilyn Monroe, combining "fact" with the Greek-derived suffix "-oid" (resembling).

Cite this Entry


Wordmom. (2026). Definition of Factoid. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/factoid
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