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Wordnet 3.0

NOUN (2)

1. a ludicrous folly;
- Example: "the crowd laughed at the absurdity of the clown's behavior"
[syn: absurdity, fatuity, fatuousness, silliness]

2. an impulsive scatterbrained manner;
[syn: giddiness, silliness]


The Collaborative International Dictionary of English v.0.48:

Silliness \Sil"li*ness\, n. The quality or state of being silly. [1913 Webster]
WordNet (r) 3.0 (2006):

silliness n 1: a ludicrous folly; "the crowd laughed at the absurdity of the clown's behavior" [syn: absurdity, fatuity, fatuousness, silliness] 2: an impulsive scatterbrained manner [syn: giddiness, silliness]