Found 2 items, similar to lightlessness.
English → English (WordNet) Definition: lightlessness lightlessness n : total absence of light; “they fumbled around in total darkness”; “in the black of night” [syn: total darkness, blackness, pitch blackness, black]
English → English (gcide) Definition: lightlessness lightlessness \lightlessness\ n. total absence of light; blackness. Syn: total darkness, blackness. [WordNet 1.5]