Definition of riotous adjective from the Oxford Advanced Learner's Dictionary

     

    riotous

     adjective
    adjective
    BrE BrE//ˈraɪətəs//
     
    ; NAmE NAmE//ˈraɪətəs//
     
    [usually before noun]
     
    jump to other results
  1. 1(formal or law) noisy and/or violent, especially in a public place riotous behaviour The organizers of the march were charged with assault and riotous assembly.
  2. 2noisy, exciting and enjoyable in an uncontrolled way synonym uproarious a riotous party riotous laughter The evening was quite riotous.
  3. Word Origin Middle English (in the sense ‘troublesome’): from Old French, from riote ‘debate’, from rioter ‘to quarrel’, of unknown ultimate origin.
See the Oxford Advanced American Dictionary entry: riotous