Containing, consisting of, or producing harsh, unpleasant or discordant sounds.

In a cacophonous manner.

discordant / unmusical

cacophonous; harsh-sounding; unmusical

In a cacophonous manner; in a manner that produces harsh, unpleasant or discordant sounds.

Third-person singular simple present indicative form of cacophonize

simple past tense and past participle of cacophonize

present participle of cacophonize

(transitive) To make cacophonous. / (intransitive) To produce a cacophony.