roil

verb

ˈrȯi(-ə)l How to pronounce roil (audio)
transitive sense 2 is also
ˈrī(-ə)l How to pronounce roil (audio)
roiled; roiling; roils
Synonyms of roilnext

transitive verb

1
a
: to make turbid by stirring up the sediment or dregs of
b
: to stir up : disturb, disorder
a crisis roiling the stock market
2

intransitive verb

: to move turbulently : be in a state of turbulence or agitation
conflicting emotions roiling inside her

Examples of roil in a Sentence

Financial markets have been roiled by the banking crisis. the waters of the gulf tossed and roiled as the hurricane surged toward the shore
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Iran’s attacks on Gulf energy infrastructure and its tight grip on the Strait of Hormuz, through which a fifth of the world’s oil and natural gas transits in peacetime, have roiled stock markets, sent oil prices skyrocketing, and threatened to raise the cost of many basic goods, including food. Sam Mednick, Fortune, 3 Apr. 2026 That a website better known for racing to announce celebrity deaths and releasing videos of misbehaving reality stars has turned its eye on DC says something about the anger roiling the nation. Elex Michaelson, CNN Money, 3 Apr. 2026 About 20% of the world's oil flows throw the strait, and Iran's ability to block the flow of tankers has roiled the global economy, sending oil prices soaring. Michael Loria, USA Today, 2 Apr. 2026 The private credit industry has been roiled in recent months by concerns that it is overexposed to the software industry – an area that’s been under pressure over fears of disintermediation from artificial intelligence. Leslie Picker, CNBC, 2 Apr. 2026 See All Example Sentences for roil

Word History

Etymology

origin unknown

First Known Use

1590, in the meaning defined at transitive sense 1a

Time Traveler
The first known use of roil was in 1590

Browse Nearby Words

Cite this Entry

“Roil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roil. Accessed 5 Apr. 2026.

Kids Definition

roil

verb
ˈrȯi(ə)l How to pronounce roil (audio)
sense 2 is also ˈrī(ə)l
1
: to make cloudy or muddy by stirring up
roil the water of a brook
2
: to rouse the anger of

More from Merriam-Webster on roil

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster