double jointed

/ˈdʌbəl ˈdʒɔɪntɪd/
adjective
  1. Having unusually flexible joints that can bend or move in ways that are not typical.
    • Being double-jointed can sometimes make certain sports or dances easier.
    • The double-jointed contortionist amazed the audience with her poses.
    • My little sister is double-jointed and can bend her thumb all the way back to her wrist.
Antonyms