Given the lack of good, hard examples, that argument sounded dubious from the start.

Of course he really meant her father, but it sounded rather dubious.

Even those managers sounded dubious when asked why Turkey should sell it.

Some methods may sound a little dubious, but they've gotten much more reliable in recent years.

Judith sounded dubious as she watched him through narrowed eyes.

"It would help if we had some scan information," she said, sounding dubious.

The other doctor sounded dubious as he asked, "How can you be sure?"

The voice at the other end sounded a little dubious.

With my simple question I was trying to sound dubious.

I guess you're right,' Leslie said, but she sounded dubious.