loose cannon

noun

: a dangerously uncontrollable person or thing

Examples of loose cannon in a Sentence

a politician who is regarded as a loose cannon by her colleagues
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Franco discussed his quick but impactful guest appearance in the comedy show in a conversation with Entertainment Weekly, explaining that the real Dave Franco isn't even close to the loose cannon that The Studio might lead you to believe. Wesley Stenzel, EW.com, 14 May 2025 But the scheme puts several targets on his back: governments and corporate entities see him as a loose cannon, and the revolutionaries see him as a predator. Richard Brody, New Yorker, 29 May 2025 All the business with Ashley’s off-stage life feels ripped from a standard contentious relationship between loose cannon celebrity and overbearing manager. Steve Greene, IndieWire, 12 Apr. 2025 Belushi was a late hire by Michaels, as he was seen as a loose cannon. Bethy Squires, Vulture, 14 Apr. 2024 See All Example Sentences for loose cannon

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of loose cannon was in 1889

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Cite this Entry

“Loose cannon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/loose%20cannon. Accessed 30 Jun. 2025.

Last Updated: - Updated example sentences
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