Adjective
1. (of soil) soft and watery;
"the ground was boggy under foot""a marshy coastline""miry roads""wet mucky lowland""muddy barnyard""quaggy terrain""the sloughy edge of the pond""swampy bayous"2. dirty and messy; covered with mud or muck;
"muddy boots""a mucky stable"3. (of color) discolored by impurities; not bright and clear;
"dirty" is often used in combination"a dirty (or dingy) white""the muddied gray of the sea""muddy colors""dirty-green walls""dirty-blonde hair"4. (of especially liquids) clouded as with sediment;
"a cloudy liquid""muddy coffee""murky waters"