LIGHTLESS
lightless, unilluminated, unlighted, unlit
(adjective) without illumination; âcame up the lightless stairsâ; âthe unilluminated side of Marsâ; âthrough dark unlighted (or unlit) streetsâ
lightless
(adjective) giving no light; âlightless stars âvisibleâ only to radio antennaeâ
Source: WordNet® 3.1
Etymology
Adjective
lightless (not comparable)
Lacking light; unilluminated; dark.
Source: Wiktionary
Light"less, a.
Definition: Destitute of light; dark. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition