roil

/rɔɪl/
verb
  1. To make a liquid muddy or cloudy by stirring up sediment.
    • The heavy rain roiled the river, turning it brown with silt.
    • Be careful not to roil the pond when you reach for the fish.
    • The boat's propeller roiled the water behind it.
  2. To disturb or upset someone; to make someone angry or agitated.
    • The unfair decision roiled the entire community.
    • News of the scandal roiled the political campaign.
    • His rude comments roiled the usually calm meeting.
Antonyms