Definition, Meaning & Synonyms

a loose cannon

Idiom
/ə luːs ˈkænən/
Definition
A person who is unpredictable and can cause problems or chaos.
Examples
  • After his last decision, many started to view him as a loose cannon who could jeopardize the project.
  • Her unpredictable behavior made her a loose cannon in the office.
  • During the debate, he acted like a loose cannon, disregarding the agreed-upon topics.
Meaning
The term refers to someone whose actions are erratic or uncontrollable, often causing unintended consequences for themselves or others.
Synonyms
  • Unpredictable person
  • Wild card
  • Reckless individual
  • Loose screw