Word needed for 'bad' voice

[Tom]

Hi

Could you please tell me a word/ adjective for someone's voice which is not good or melodious in the least, yet the person keeps on singing.

1- Oh, not again! He has got such a _______ voice!

Tom

[Yankee]

Hi Tom

How about screechy, shrill or off-key?

[Alan]

Hi Tom,

I know exactly what you mean. I would suggest jarring or tuneless.

A voice can grate on your nerves in the sense that it has an unpleasant effect on your nerves. From that you can get 'a grating voice'.

Alan
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[Diverhank]

I'd go for "lousy" since the example is a conversational piece.

[Yankee]

.
Along the same lines as diverhank, you could also say crummy, rotten, or dreadful. They can all be used to mean "terrible".
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