obscure fact

noun phrase

Meaning

A piece of information that is little-known, difficult to find, or irrelevant to most people.

Examples

  • He loves winning trivia games by reciting obscure facts about 19th-century maritime law.
  • The documentary was filled with obscure facts that even the museum curators had never heard before.

Synonyms: trivia, nugget of information, esoteric detail, arcana