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Synonyms

riotous

American  
[rahy-uh-tuhs] / ˈraɪ ə təs /

adjective

  1. (of an act) characterized by or of the nature of rioting or a disturbance of the peace.

  2. (of a person) inciting or taking part in a riot.

  3. given to or marked by unrestrained revelry; loose; wanton.

    riotous living.

  4. boisterous or uproarious.

    riotous laughter.

  5. hilariously funny.


riotous British  
/ ˈraɪətəs /

adjective

  1. proceeding from or of the nature of riots or rioting

  2. inciting to riot

  3. characterized by wanton or lascivious revelry

    riotous living

  4. characterized by boisterous or unrestrained merriment

    riotous laughter

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of riotous

Middle English word dating back to 1300–50; see origin at riot, -ous

Explanation

Anything riotous is disorderly, chaotic, and loud. Riotous things can also be abundant. Since a riot is a disturbance where people get out of control and become violent, riotous things are also loud, disruptive, and out of hand. If everyone in class speaks at once to answer a question, that's a riotous response. Chaos is always riotous. The opposite of riotous would be calm, civilized, and peaceful. Also, you can say that lush, abundant things are riotous. If an apple tree is producing an unusually large amount of apples, it's riotous.

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Vocabulary lists containing riotous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The best director prize went to Russian-born Ilya Khrzhanovsky for his vast, riotous and experimental cinema project "DAU" that chronicles the life of the troubled father of the Soviet nuclear programme, Lev Landau.

From Barron's ● Sep. 12, 2026

But she was still buzzing with adrenaline from Bikini Kill’s riotous act just minutes before.

From Los Angeles Times ● Sep. 1, 2026

The Tour has fixed something in Paris: taking what used to be a mostly-dull pedal around the cobbles of the Champs-Élysées and adding a riotous, repeat ascent which separates the best riders from the crowd.

From The Wall Street Journal ● Jul. 27, 2026

Earlier, the second semi-final kicked off with Bulgarian singer Dara, who burst onto the stage in a riotous blur of chair choreography and ferocious hair tossing.

From BBC ● May 14, 2026

I slept soundly through a riotous night at Columbia while students and sirens screamed outside my dormitory window.

From "Hunger of Memory" by Richard Rodriguez

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