'Roily' definitions:

Definition of 'roily'

From: WordNet
adjective
(of a liquid) agitated vigorously; in a state of turbulence; "the river's roiling current"; "turbulent rapids" [syn: churning, roiling, roiled, roily, turbulent]

Definition of 'Roily'

From: GCIDE
  • Roily \Roil"y\, a. Turbid; as, roily water. [1913 Webster]