loose cannon loose-bodied • loose-coupled · · · Info · Definitions · Characters · · loose cannon · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) a person who is expected to perform a particular task but who is out of control and dangerous. Synonyms: loose cannon. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073