1literary with object Make (a liquid) turbid or muddy by disturbing the sediment.‘winds roil these waters’murky, cloudy, muddied, turbid, opaque, impure
- 1.1no object (of a liquid) move in a turbulent, swirling manner.‘the sea roiled below her’‘a kind of fear roiled in her’
bubble, fizz, foam, cream, lather
- ‘The water roils around the combatants, and the sky is filled with clouds and tiny lines that intensify the sense of cataclysm.’
- ‘The core mantle boundary is a complex and dynamic area that churns and chugs as the liquid iron core roils at the bottom of the rock-like mantle.’
- ‘The North Sea roils just off the former hippie village of Monster, 40 miles southwest of Amsterdam.’
- ‘Below him water burbles, roils, and freezes into 300-pound blocks.’
- ‘On volcanically active planets like Venus, the surface roils and churns so quickly that solid crust does not have a chance to form.’
- ‘The clouds are pink, the seas around Hook's ship surge and roil, and the fairies dance deep in the forest.’
- ‘Back on the ship, as the plot thickens and roils, our brave buccaneers flounder in the doldrums.’
- ‘While again Rawsthorne doesn't go so far as to lose his head or wear his heart on his sleeve, one gets the impression of great passions roiling under a relatively calm surface.’
- ‘In the great Chaplin-versus-Keaton debate that's been roiling for decades among cinephiles, I come down firmly on the Chaplin side.’
- ‘Something of Turner's seascapes, where everything appears to be roiling, comes through.’
- ‘Beneath the veneer of landscapes, portraits and genre scenes, political rivalries roiled, and medals granted to entrants were contested hotly as matters of national pride.’
- ‘The waves roil mightily, and batter and strike the ship so that they crush both sides of the hull and the planking almost shatters.’
- 1.1no object (of a liquid) move in a turbulent, swirling manner.
2US with object Make (someone) annoyed or irritated.
- ‘That roiled his colleagues and, some argued, prolonged a stoppage that wiped out the World Series.’
- ‘That comment still roils the ultra-liberal faculty at the university.’
- ‘Any religious film with violence is bound to roil some people.’
- ‘He appears to have roiled some executives who were turned off by his hard-charging approach and overselling the merger's synergies.’
Late 16th century perhaps from Old French ruiler ‘mix mortar’, from late Latin regulare ‘regulate’.
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