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Noun: boisterousness  boy-st(u-)rus-nus
  1. The property of being noisy and lively and unrestrained
    "The boisterousness of the children at recess filled the playground"
     
  2. A turbulent and stormy state of the sea
    "The boisterousness of the ocean made it too dangerous for small craft to venture out"

Type of: noisiness, racketiness, raucousness, storminess