gracility

noun

1. (countable, often, uncountable)The property or condition of being gracile.

   “Stephen L. Whittington, David M. Reed (eds.) (2006), Bones of the Maya: Studies of Ancient Skeletons, Tuscaloosa, Ala: University of Alabama Press, →ISBN, page 69: “Gracility is usually considered a female characteristic and contrasts strikingly here with the robusticity and large size of the mandible.””