DictionaryriotousUnrestrained behavior or energy
adjective

riotous

RYE-uh-tuhs/ˈraɪətəs/

Wildly lively or disorderly.

The riotous celebration sends streamers flying as the young adults shout and jump.

Two young adults in a riotous burst of celebration, shouting and jumping beside an overturned chair as party streamers fly.
Etymology

Originally describing argumentative or quarrelsome behavior, the adjective came to cover wanton conduct and public turbulence. Its modern meaning extends that unruliness to wildly noisy or uncontrolled behavior.

In context

Arlington Community Media Inc.8:30
these are the proceedings of a tumultuous and riotous rabble
Intro to the Ways of Town Meeting - April 7, 2012

More examples

  • Her impression of the principal draws riotous laughter.
  • The quiet dinner turns into a riotous celebration.
  • Security guards struggle to control the riotous crowd.

Forms

riotous

riot noun — A violent disturbance by a crowd.

riotously adverb — In a wildly lively or disorderly way.

Similar words

boisterous
Emphasizes noisy, energetic behavior rather than serious disorder.
unruly
Emphasizes resistance to control rather than exuberant energy.
exuberant
Expresses joyful energy without necessarily implying noise or disorder.