[syn: total darkness, lightlessness, blackness, pitch blackness, black]
The Collaborative International Dictionary of English v.0.48:
Blackness \Black"ness\, n.
   The quality or state of being black; black color;
   atrociousness or enormity in wickedness.
   [1913 Webster]
         They're darker now than blackness.       --Donne.
   [1913 Webster]
WordNet (r) 3.0 (2006):
blackness
    n 1: the quality or state of the achromatic color of least
         lightness (bearing the least resemblance to white) [syn:
         black, blackness, inkiness] [ant: white,
         whiteness]
    2: total absence of light; "they fumbled around in total
       darkness"; "in the black of night" [syn: total darkness,
       lightlessness, blackness, pitch blackness, black]