Adjective

1. cloudy, muddy, mirky, murky, turbid, opaque (vs. clear)

usage: (of liquids) clouded as with sediment; "a cloudy liquid"; "muddy coffee"; "murky waters"

2. murky, mirky, shaded (vs. unshaded)

usage: dark or gloomy; "a murky dungeon"; "murky rooms lit by smoke-blackened lamps"

See also: murky (Dictionary)