Context: My brother just played a video with loud screeching noises in the background about 5 feet from me as I was reading a pleasant book. I turned to chastise him, exclaiming,
"John! Turn that off! That sounds is so _______."
I couldn't find the proper word. Discordant, biting, harsh aren't quite right. Anyone have any suggestions?
Best Answer
It isn't an adjective, and it doesn't exactly fit into your example sentence, but what I immediately thought of was cacophony.
To paraphrase your sentence:
As was mentioned in a comment, there is an adjectival form of this word: