赤身裸体
to be naked
  The photos show the princess romping in the altogether in the Caribbean.
 This is a safe area of the beach for swimmers who prefer to bathe in the altogether.
 They were persuaded to pose in the altogether for a charity calendar.
 In this scene, we see him standing before her in the altogether.
 He didn't think there was anything wrong in being seen in the altogether.
 See also: altogether noun