Abounding in, covered with, or containing mud; foul with mud; turbid, as water or other fluids; miry.Consisting of mud or earth; hence, gross; impure; vile.Not clear or pure in color: as, a muddy green; a muddy complexion.Cloudy in mind; confused; dull; heavy; stupid.Obscure; wanting in clearness or perspicuity: as, a muddy style of writing.To soil with mud; dirty.To cloud; make dull or heavy.