Dictionary & Thesaurus

silliness

1.	(noun) an impulsive scatterbrained manner
	Synonyms: giddiness
	Related Words: frivolity, frivolousness, lightsomeness

2.	(noun) a ludicrous folly; "the crowd laughed at the absurdity of the clown's behavior"
	Synonyms: absurdity, fatuity, fatuousness
	Related Words: folly, foolishness, unwiseness