Definition of double-jointedness in English:

double-jointedness

noun

  • See double-jointed

    • ‘And it's also the connective tissue is in your ligaments, and that's why these people have double-jointedness.’
    • ‘Repairs done inside the machinery are like those done behind the U-bend of a sink: they demand a contortionist's double-jointedness as well as a plumber's strong wrist.’