Sekirov Dictionary

loose cannon

noun 2
verb 1
forms 3

noun2

A cannon that breaks loose from its moorings on a ship during battle or storm, with the potential to cause serious damage to the ship and her crew.
•
An uncontrolled or unpredictable person, especially considered liable to cause unintentional or indiscriminate damage.
- Jack is considered a loose cannon due to his volatile personality and his track record of being unable to maintain his composure.

verb1

•
To behave in a way such as to cause unintentional or indiscriminate damage.
- Gerald's loose cannoning triggered a volley of faithfully quoted media coverage which blasted a hole in his company's profits […] — 2006

forms

loose cannoned · loose cannoning · loose cannons

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