← BackshareGuessroily/ˈrɔɪli/adjectiveOf water or another liquid: cloudy, muddy, or stirred up.The roily pond water was full of algae and silt.The fisherman avoided the roily parts of the lake where visibility was poor.After the flood, the creek looked roily and unappealing.SynonymsmuddyturbidcloudyAntonymsclearclean