Definition of loose cannon noun from the Oxford Advanced Learner's Dictionary


loose cannon

BrE BrE//ˌluːs ˈkænən//
; NAmE NAmE//ˌluːs ˈkænən//
Describing strange traits
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a person, usually a public figure, who often behaves in a way that nobody can predict See related entries: Describing strange traits
See the Oxford Advanced American Dictionary entry: loose cannon