sombreness

n.

a state of partial or total darkness

同义词：gloomsomberness

a feeling of melancholy apprehension

同义词：gloomgloominesssomberness

a manner that is serious and solemn

同义词：gravenessgravitysobrietysobernesssomberness

Sombreness, Crime and Modernity in the Art of James Pryde (1866-1941)
The Cry of the Crow: Sombreness in Australian Literature
About sombreness, a characteristic of Takuboku : A study on Ichiaku no Suna.
Two voices of Othello: Rossini's serenity, Verdi's sombreness