melancholy — noun
mel·​an·​choly (ˈme-lən-ˌkä-lē)
[plural] melancholies

1. a : depression of spirits : DEJECTION.

   great outbursts of creativity alternate with feelings of extreme melancholy

   — Brenda Lane Richardson

   Mitchell sounds utterly alone in her melancholy, turning the sadness into tender art.

   — Rolling Stone

   b : a pensive mood

   a fine romantic kind of a melancholy on the fading of the year

   — Richard Holmes

   One white arm and hand drooped over the side of the chair, and her whole pose and figure spoke of an absorbing melancholy.

   — Arthur Conan Doyle

2. a : MELANCHOLIA sense 1

   b [archaic] : an abnormal state attributed to an excess of black bile and characterized by irascibility or depression

   c [archaic] : BLACK BILE