Akademik

roiling
adjective
(of a liquid) agitated vigorously; in a state of turbulence (Freq. 2)
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the river's roiling current

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turbulent rapids

Syn: ↑churning, ↑roiled, ↑roily, ↑turbulent
Similar to: ↑agitated
Derivationally related forms: ↑turbulency (for: ↑turbulent), ↑turbulence (for: ↑turbulent)

Useful english dictionary. 2012.