riotous

adj

1. Having the characteristics of a riot.
2. Causing, inciting or taking part in a riot.

   “The prison administrators are always planting seeds of hate, division, separatism, and prison peer group racism in the various ethnic groups here, causing friction and riotous situations where one group is set against another.”

3. Unrestrained and boisterous; degenerate or dissolute.

   “Open carriages tend to be draughty and inadequately heated. The passenger in them has no escape from the annoyance of squalling babies, boisterous drunks, and riotous teddy-boys, who may be at the far end of the coach but whose din cannot be shut out.”