Frivolity
Part of speech: noun
Definition: frivolous act state of being frivolous
Example sentence: You spend ten years of your life being trained to do one thing, and you're being taught to think that it's the most serious thing that anyone could possibly do, and then suddenly you find yourself doing something that in some respects is the epitome of frivolity.
Frivolousness
Part of speech: noun
Definition: The quality of being frivolous; frivolityThe result of being frivolous