She shuddered; why could she never get those words out of her mind, why did they always sound so sinister?

This last ingredient sounds more sinister than it actually is.

Moore altered the line somewhat, since he thought "kerosene" sounded more sinister.

A low laugh, weirdly muffled in the closeness of the car, sounded vague and sinister.

It sounds so sinister when attached to a tournament that owes its popularity, in part, to those innocent brackets.

The bowling, had sounded sinister; now it seemed mournful, frightened.

And he made it sound very sinister, that business about the tattoo.

This sounded more or less sinister, and I stared at him over the rim of the cup.

This sounds very sinister, even if you're not really sure what it means.

"You make it sound so sinister," she says reproachfully.