Cimmerian \si-MEER-ee-uhn\ , adjective:
1. Very dark; gloomy; deep.
2. Classical Mythology. Of, pertaining to, or suggestive of a western people believed to dwell in perpetual darkness.
Cimmerian - I had been depressed before, many times depressed, but this most recent season of despair had taken me to a cimmerian existence, a lifeless place for any soul.