muddy -- (cause to become muddy; "These data would have muddied the prediction")
muddy -- (make turbid; "muddy the water")
Overview of adj muddy
The adj muddy has 4 senses
boggy, marshy, miry, mucky, muddy, quaggy, sloppy, sloughy, soggy, squashy, swampy, waterlogged -- ((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")
mucky, muddy -- (dirty and messy; covered with mud or muck; "muddy boots"; "a mucky stable")
dirty, dingy, muddied, muddy -- ((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")
cloudy, muddy, mirky, murky, turbid -- ((of liquids) clouded as with sediment; "a cloudy liquid"; "muddy coffee"; "murky waters")