sombreness          
noun [ U ] UK (US somberness) uk/ˈsɒm.bə.nəs/ us/ˈsɑːm.bɚ.nəs/
 严肃;忧郁
seriousness and sadness
  They drank their tea, a sombreness in their manner. 他们喝着茶,举止忧郁。 
 You can sense the collective sombreness at the team's hotel. 你可以在球队的酒店里感受到集体的忧郁。 
  (地方、衣服等)暗淡,深色
(of a place, clothes, etc.) darkness
  The great candles served only to accentuate the gloom and sombreness of the hall. 那些巨大的蜡烛只是加重了大厅的阴郁和沉闷。 
 It is a place of the most staggering sombreness, grandeur, and gloom. 这个地方阴沉、庄严、昏暗,令人惊讶。 
 See: sombre
 - More examples
 - Their happiness was tinged with sombreness.
 - His mood changed suddenly, the sombreness vanishing as if it had never been there.
 - The sombreness of the church was relieved only by the wall-paintings.