Cimmerian adj 1: intensely dark and gloomy as with perpetual darkness; "the Cimmerian gloom...a darkness that could be felt"-Norman Douglas
Cimmerian \Cim*me"ri*an\, a. [L. Cimmerius.] [Written also {Kimmerian}.] 1. Pertaining to the Cimmerii, a fabulous people, said to have lived, in very ancient times, in profound and perpetual darkness. [1913 Webster] 2. Without any light; intensely dark. [1913 Webster] In dark Cimmerian desert ever dwell. --Milton. [1913 Webster]