muddy in WordNet English dictionary

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"
   boggy  marshy  miry  mucky  muddy  quaggy  sloppy  sloughy  soggy  squashy  swampy  waterlogged 
   
2. (of liquids) clouded as with sediment
   "a cloudy liquid"; "muddy coffee"; "murky waters"
   cloudy  muddy  mirky  murky  turbid 
   
3. (of color) discolored by impurities; not bright and clear
   "dirty" is often used in combination; "a dirty (or dingy) white"; "the muddied grey of the sea"; "muddy colors"; "dirty-green walls"; "dirty-blonde hair"
   dirty  dingy  muddied  muddy 
   
4. dirty and messy; covered with mud or muck
   "muddy boots"; "a mucky stable"
   mucky  muddy 
   

1. make turbid
   "muddy the water"
   muddy 
   
2. cause to become muddy
   "These data would have muddied the prediction"
   muddy 
   
3. dirty with mud
   muddy  muddy up