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loose cannon

NOUN
unpredictable person
Synonyms


Example Sentences

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“Currently the logic is not to escalate, and when you put in a player that is a loose cannon in the mix, you lose control of the situation.”

From The Wall Street Journal ● Jul. 21, 2026

That’s not to say that Harris is best as a loose cannon.

From Los Angeles Times ● Sep. 13, 2024

Door staff and witnesses told the trial that O'Pray had been a "loose cannon" and was "very erratic" that night.

From BBC ● Jul. 21, 2023

“One man’s loose cannon is another man’s freedom fighter,” she wrote in 1987 of the city’s cast of characters in 1987.

From Slate ● Jun. 14, 2023

“If you want to tie down a loose cannon, you can’t give it much rope, follow?”

From "Dry" by Neal Shusterman and Jarrod Shusterman


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