muddy

dirty and messy; covered with mud or muck

muddy boots

a mucky stable

(of liquids) clouded as with sediment

a cloudy liquid

muddy coffee

(of color) discolored by impurities; not bright and clear

dirty" is often used in combination

a dirty (or dingy) white

(of soil) soft and watery

the ground was boggy under foot

a marshy coastline

make turbid

muddy the water

cause to become muddy

These data would have muddied the prediction

dirty with mud