The Collaborative International Dictionary of English v.0.48:

Noisy \Nois"y\, a. [Compar. Noisier; superl. Noisiest.]
   [From Noise.]
   1. Making a noise, esp. a loud sound; clamorous; vociferous;
      turbulent; boisterous; as, the noisy crowd.
      [1913 Webster]

   2. Full of noise. "The noisy town." --Dryden.
      [1913 Webster]