<adj.all> the common people in those days suffered greatly behavior that branded him as common his square plebeian nose a vulgar and objectionable person the unwashed masses
not cleaned with or as if with soap and water
<adj.all> a sink full of unwashed dishes
Unwashed \Un*washed"\, a. Not washed or cleansed; filthy; unclean.
"Four years ago it was usual to see sacks of unwashed potatoes on supermarket shelves, but such presentation is no longer acceptable," says an Agriculture Department report.