Definition of lightless:
pitchy, without light, dark, stygian, unlighted, dusk, caliginous, tenebrific, obscured, darkish, tenebrous, darksome, pitch-black, darkling, unilluminated, unlit, unseeable, dimmed, invisible, rayless, pitch-dark.
To the East, as I stood there in the quietness of the Sleeping- Time on the One Thousandth Plateau, I heard a far, dreadful sound, down in the lightless East; and, presently, again- a strange, dreadful laughter, deep as a low thunder among the mountains.- "The Night Land", William Hope Hodgson.
An hour had elapsed; it was now midnight; the moon rode high, a cold white disk against a background of sapphire velvet, its pellucid rays revealing with disheartening distinctness the inanimate and lightless roadside hamlet called Greenfields; its general store and postoffice, its soi- disant hotel, its straggling line of dilapidated habitations, all wrapped in silence profound and impenetrable.- "The Brass Bowl", Louis Joseph Vance.
- "Breaking Point", James E. Gunn.