- 1 • informal Make (someone) annoyed or irritated: it was his air of knowing all the answers that riled her he’s getting you all riled upMore example sentences
- Certainly, when she was riled up enough about something she became nearly as intimidating as Jess.
- She looked so calm and relaxed while I was riled up inside.
- Alec had always been more patient than most, but if he was riled up, there was no changing his mind.
- 2North American Make (water) turbulent or muddy.More example sentences
- It was expected that the heavy rain would rile the water and drive the trout farther. upstream
- The water was riled by the wind and waves and I did not feel like a morning swim in the cloudy water.
early 19th century: variant of roil.