Verb

• S: (v) muddy, muddy up (dirty with mud)
• S: (v) muddy (cause to become muddy) "These data would have muddied the prediction"
• S: (v) muddy (make turbid) "muddy the water"

Adjective

• S: (adj) 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"