Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb roil
2 senses of roil
Sense 1
churn, boil, moil, roil -- (be agitated; "the sea was churning in the storm")
=> move -- (move so as to change position, perform a nontranslational motion; "He moved his hand slightly to the right")
Sense 2
roil, rile -- (make turbid by stirring up the sediments of)
=> agitate, vex, disturb, commove, shake up, stir up, raise up -- (change the arrangement or position of)