1. to make turbid by stirring up sediment
2. to disturb or upset; to make angry or agitated

Examples

• The heavy rain roiled the normally clear stream.
• His careless comment roiled the entire meeting.
• The muddy water was roiled by the passing boat.
• She was roiled by the unfair criticism.
• The controversy roiled the small town for weeks.
• Strong winds roiled the surface of the lake.