Triviality
Part of speech: noun
Definition: The quality of being trivial or unimportant. Something which is trivial or unimportant.
Trivia
Part of speech: noun
Definition: insignificant trifles of little importance, especially items of unimportant informationA quiz game that involves obscure facts.Insignificant trifles of little importance, especially items of unimportant information
Example sentence: I have failed 'Star Wars' trivia tests. People come up to me at conventions and use terms that I've never heard of.