(transitive, of a fluid, especially a liquid) To render turbid by stirring up the dregs or sediment of. / (transitive, of a person or group of people) To annoy; to make angry; to throw into discord.

Third-person singular simple present indicative form of roil

simple past tense and past participle of roil

present participle of roil

The motion of something that roils; a bubbling or seething.

plural of roiling

(of a liquid, e.g. wine, cider, or a spring of water) agitated; with stirred-up dregs or sediment; turbid / (by analogy, of a person) agitated

(of water) muddy, cloudy (having lots of sediment) / turbulent

superlative form of roily: most roily

comparative form of roily: more roily