- The definition of noisy is a loud person, thing or activity.
- An example of noisy are football fans when their team scores a touchdown.
- An example of noisy is a car without a muffler.
Noisy football fans.
- Making noise: a small, noisy dog.
- Full of, characterized by, or accompanied by noise: a noisy cafeteria.
(comparative noisier, superlative noisiest)