cacophony
[kuh-kof-uh-nee]
noun, plural cacophonies.
1.
harsh discordance of sound; dissonance:
a cacophony of hoots, cackles, and wails.
2.
a discordant and meaningless mixture of sounds:
the cacophony produced by city traffic at midday.
3.
Music. frequent use of discords of a harshness and relationship difficult to understand.