Merriam-Webster Collegiate Dictionary - babylonian

 I. noun  Date: 1540  1. a native or inhabitant of ancient Babylonia or Babylon  2. the form of the Akkadian language used in ancient Babylonia  II. adjective  Date: 1567  1. of, relating to, or characteristic of Babylonia or Babylon, the ~s, or ~  2. marked by luxury, extravagance, or the pursuit of sensual pleasure the ~ halls of the big hotel — G. K. Chesterton the ~ delights of the city