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debacle

American  
[dey-, -bak-uhl, duh-, dee-bah-kuhl] / deɪ-, -ˈbæk əl, də-, diˈbɑ kəl /

noun

  1. a general breakup or dispersion; sudden downfall or rout.

    The revolution ended in a debacle.

  2. a complete collapse or failure.

    Synonyms:
    calamity, catastrophe, fiasco, ruin, disaster
  3. a breaking up of ice in a river.

  4. a violent rush of waters or ice.


debacle British  
/ deɪˈbɑːkəl, dɪ- /

noun

  1. a sudden disastrous collapse or defeat, esp one involving a disorderly retreat; rout

  2. the breaking up of ice in a river during spring or summer, often causing flooding

  3. a violent rush of water carrying along debris

"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

Etymology

Origin of debacle

1795–1805; < French débâcle, derivative of débâcler to unbar, clear, equivalent to dé- dis- 1 + bâcler to bar ≪ Latin baculum stick, rod

Explanation

Use debacle to refer to a fiasco, disaster, or great failure. If several dogs run onto the field during the big baseball game, tripping players and chewing up the bases, you can call the whole event a debacle. Debacle is sometimes used to describe a military defeat. If your army retreats, that's one thing. If your army is outmaneuvered and ends up huddled in a valley, surrounded on all sides by the enemy, forced to sing 90s sitcom theme songs by their savage captors — that's a debacle. Debacle comes from the French débâcler, "to clear," — the prefix des- means "completely, utterly" and the verb bacler means "to block."

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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.

Appeared in the October 15, 2025, print edition as 'Death of a ‘Clean Energy’ Debacle'.

From The Wall Street Journal • Oct. 14, 2025

Tellingly, in his career-spanning 2014 anthology “Bent Larsen’s Best Games: Fighting Chess with the Great Dane,” the Danish GM skips right over without a single mention the Debacle in Denver.

From Washington Times • May 10, 2022

Good one, as long as you forget Renner's role in the Great Jeremy Renner Vanity App Debacle of 2019.

From Salon • Nov. 24, 2021

Perfect proof was provided Sunday in Big D, where the unbeaten Steelers nearly had a Big Debacle against the woeful Cowboys.

From Seattle Times • Nov. 9, 2020

La Debacle has been described as "a prose epic of modern war," and vast though the subject be, it is treated in a manner that is powerful, painful, and pathetic.

From A Zola Dictionary; the Characters of the Rougon-Macquart Novels of Emile Zola; by Patterson, J. G

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