Webster’s Revised Unabridged Dictionary · 1913
Atrabilious
At′ra·bil′ious (·yŭs), a. Melancholic or hypochondriac; atrabiliary. Dunglision.
A hard-faced, atrabilious, earnest-eyed race. Lowell.
He was constitutionally atrabilious and scornful. Froude.