full of or characterized by loud and nonmusical sounds
"a noisy cafeteria"
"a small noisy dog"
Making a noise, especially a loud unpleasant sound
"The construction crew outside was so noisy that I couldn't hear myself think while trying to read."
In plain English: Noisy means making too much loud sound that is annoying to hear.
"The party was so noisy that I had to shout just to be heard."
Usage: Use noisy to describe something that produces unwanted or disruptive sounds rather than just any audible activity. It often applies specifically to environments like construction sites or parties where the volume interferes with peace and quiet.
The word noisy is formed by adding the suffix -y to noise. It describes something that makes a lot of sound just like its root word does.