glumness

from WordNet (r) 3.0 (2006)

glumness
    n 1: an atmosphere of depression and melancholy; "gloom pervaded
         the office" [syn: {gloom}, {gloominess}, {glumness}]
    2: a gloomy ill-tempered feeling [syn: {moroseness}, {glumness},
       {sullenness}]

from The Collaborative International Dictionary of English v.0.48

Glumness \Glum"ness\, n.
   Moodiness; sullenness.
   [1913 Webster]