The laughter may sound unpleasant and sardonic rather than joyful.

If this sounds deeply unpleasant to watch, it is.

I don't know what that means but it sounds unpleasant at best and at worst, illegal.

The twist she gave the word made it sound decidedly unpleasant.

He did not know what that meant, except that she made it sound unpleasant.

I worry that I could have hepatitis, but the treatment sounds very unpleasant and might not even work.

"Thought so," he said, trying to sound unpleasant (but he had lost the knack).

He, of course, could be reembodied, but death by sphexbat sounded unusually unpleasant.

Irrespective of whether it sounds pleasant or unpleasant, noise can cause very serious damage to hearing.