From WordNet (r) 3.0 (2006) [wn]:
noisy
adj 1: full of or characterized by loud and nonmusical sounds;
"a noisy cafeteria"; "a small noisy dog" [ant: quiet]
2: attracting attention by showiness or bright colors; "a noisy
sweater"
From The Collaborative International Dictionary of English v.0.48 [gcide]:
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]