Atrabilious \At`ra*bil"ious\, a. Melancholic or hypochondriac; atrabiliary. --Dunglision.

A hard-faced, atrabilious, earnest-eyed race. --Lowell.

He was constitutionally atrabilious and scornful. --Froude.

Source: Webster's Revised Unabridged Dictionary (1913)