Today’s word is aphotic (ay-FO-tik) adjective
Lightless, especially without sunlight.
[From Greek a- (not) + phot- (light). Ultimately from Indo-European
root bha- (to shine) that's also the source of beacon, beckon, phantom,
phenomenon, and phosphorous.]
What a dreary drought is the Cmmdr’s career, an aphotic nightmare of hopelessness.