Synonyms for Riotous (same or very similar meaning)
WordNet sense 1 (characterized by unrest or disorder or insubordination):
disruptive, troubled, tumultuous, turbulent
WordNet sense 2 (characterized by unrest or disorder):
unquiet
WordNet sense 3 (unrestrained by convention or morality):
debauched, degenerate, dissipated, dissolute, fast, libertine, profligate, degraded, degenerate
WordNet sense 4 (deliberately violating accepted principles of right and wrong):
immoral
WordNet sense 5 (produced or growing in extreme abundance):
exuberant, lush, luxuriant, profuse
WordNet sense 6 (present in great quantity):
abundant
From the ODE community, based on WordNet
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