Definition of roil
- conflicting emotions roiling inside her
Financial markets have been roiled by the banking crisis.
the waters of the gulf tossed and roiled as the hurricane surged toward the shore
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'roil.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 1590See Words from the same year
: to upset (someone or something) very much : to cause (someone or something) to become very agitated or disturbed
: to move in a violent and confused way
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