Definitions

1. adjective

given to rioting or violent disorder; causing a riot

“The riotous behavior of the crowd was a major concern for the police.”

2. adjective

wildly and extravagantly entertaining or enjoyable

“The riotous performance by the rock band was a huge hit at the music festival.”

3. noun

a wild and noisy party

“The party was a riotous affair with loud music and dancing till the early hours.”