- atrabilarianCharacterized by melancholy or glum; atrabilarious; atrabilious.
- atrabiliaryOf or relating to black bile.
- atrabiliousHaving an excess of black bile.
- black bileOne of the four humours of ancient and mediaeval physiology, that was believed to be secreted by the kidneys and spleen and to cause melancholy and sadness when present in excess.