rioter

noun

1. wild or violent disorder, confusion, or disturbance; tumult; uproar
2. a violent public disturbance of the peace, by a number of persons (specified, in law, usually as three or more) assembled together
3. an unrestrained outburst, as of laughter
4. a brilliant, vivid display: a riot of color
5. Now Rare
   1. wild, loose living; debauchery
   2. unrestrained revelry
   3. a wild, noisy feast or revel
6. ☆ Informal an extremely amusing person, thing, or event

intransitive verb

1. to take part in a tumult or disturbance of the peace
2. Now Rare
   1. to live in a wild, loose manner
   2. to engage in unrestrained revelry
   3. to indulge without restraint; revel (in something)

transitive verb