1. unimportant or trivial facts, details, or information
Usage: usually used as a mass noun
2. a game or contest involving questions about obscure or detailed facts
Usage: often used attributively

Examples

• She has an amazing memory for sports trivia.
• The book is filled with interesting trivia about movie stars.
• We played trivia at the local pub every Tuesday night.
• His head is full of useless trivia about old TV shows.
• The trivia contest had questions about history and science.
• I love reading trivia books during my lunch break.
• The trivia night raised money for charity.