grimness

from WordNet (r) 3.0 (2006)

grimness
    n 1: the quality of being ghastly [syn: {ghastliness},
         {grimness}, {gruesomeness}, {luridness}]
    2: something hard to endure; "the asperity of northern winters"
       [syn: {asperity}, {grimness}, {hardship}, {rigor}, {rigour},
       {severity}, {severeness}, {rigorousness}, {rigourousness}]

from The Collaborative International Dictionary of English v.0.48

Grimness \Grim"ness\, n. [AS. grimnes.]
   Fierceness of look; sternness; crabbedness; forbiddingness.
   [1913 Webster]