cacophonous
adjective
cacophonous rock music blared from the speakers:
loud, noisy, ear-splitting, blaring, booming, thunderous, deafening;
raucous, discordant, dissonant, inharmonious, unmelodious, unmusical, tuneless, harsh, strident, screeching, screechy, grating, jarring, jangling;
rare horrisonant, absonant.
▷antonyms harmonious, sweet.