at the worst

At or of the worst, least favorable, or least desirable outcome possible. Often indicates a belief or insinuation that such an outcome will not be disastrous or that a more positive outcome is as likely. Our house wasn't too badly damaged from the flood. We'll have to replace the downstairs carpets at the worst. Although I didn't study for the test, I figured I'd get a B at the worst because the teacher takes his questions right from our homework. I wouldn't worry too much about the charges. At the worst, they'll make you do some community service or pay a fine.