Definition of "atrabilious" in English

adjective

1. (medicine, obsolete) Having an excess of black bile.

   • [I] could see nothing in the evidence which did persuade me to think them other than poor, melancholy, envious, mischievous, ill-disposed, ill-dieted, atrabilious constitutions.

2. Characterized by melancholy.

3. Ill-natured; malevolent; cantankerous.