loose cannon

noun
Updated on: 13 May 2018

Definition of loose cannon

: a dangerously uncontrollable person or thing

Examples of loose cannon in a Sentence

  1. a politician who is regarded as a loose cannon by her colleagues

Recent Examples of loose cannon from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'loose cannon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of loose cannon

1889

in the meaning defined above

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LOOSE CANNON Defined for English Language Learners

loose cannon

Definition of loose cannon for English Language Learners

  • : a person who cannot be controlled and who does or says things that cause problems, embarrassment, etc., for others


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