Definition of riotous adjective from the Oxford Advanced American Dictionary

     

    riotous

     adjective
    adjective
    NAmE//ˈraɪət̮əs//
     
    [usually before noun]
     
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  1. 1 (formal) noisy and/or violent, especially in a public place riotous behavior
  2. 2noisy, exciting, and enjoyable in an uncontrolled way synonym uproarious a riotous party riotous laughter
See the Oxford Advanced Learner's Dictionary entry: riotous