abounding in or covered with mud.

not clear or pure

muddy colors.

cloudy with sediment

muddy coffee.

dull, as the complexion.

not clear mentally.

obscure or vague, as thought, expression, or literary style.

Horse Racing . denoting the condition of a track after a heavy, continuous rainfall has ceased and been completely absorbed into the surface, leaving it the consistency of thick mud.

to make muddy; soil with mud.

to make turbid.

to cause to be confused or obscure.

to become muddy.