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Noun: silliness  si-lee-nus
  1. A ludicrous folly
    "the crowd laughed at the silliness of the clown's behaviour"
    - absurdity, fatuity, fatuousness
     
  2. An impulsive scatterbrained manner
    - giddiness

Derived forms: sillinesses

See also: silly

Type of: folly, foolishness, frivolity, frivolousness, unwiseness

Encyclopedia: Silliness

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silky wisteria
silky-haired
silky-leafed
silky-leaved
sill
sillabub
Sillaginidae
Sillago
sillcock
sillily
silliness
sillock
Sills
silly
silly billy
silly season
silo
siloxane
Silphium
Silphium laciniatum
silt