• WordNet 3.6
    • adj atrabilious irritable as if suffering from indigestion
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Webster's Revised Unabridged Dictionary
    • a Atrabilious Melancholic or hypochondriac; atrabiliary. "A hard-faced, atrabilious , earnest-eyed race.""He was constitutionally atrabilious and scornful."
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Century Dictionary and Cyclopedia
    • atrabilious Affected as if by black bile; melancholic or hypochondriacal; splenetic. See atrabile.
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In literature:

You are full of sourness, hypochondria, gall, bad humour, biliousness and atrabiliousness I am fearful of all this on our account.
"The Memoirs of Victor Hugo" by Victor Hugo
But despite the gloomy nonsense of certain atrabilious dreamers, the wonderful era of the Greeks was that of the reign of the courtesans.
"The Satyricon, Complete" by Petronius Arbiter
Regnard, the author of the last French comedy after Moliere, was atrabilious; and Moliere himself, saturnine.
"Life of Lord Byron, Vol. 6 (of 6)" by Thomas Moore
How balefully those atrabilious eyes glistened!
"The Atlantic Monthly, Volume 13, No. 80, June, 1864" by Various
I only know in general that the people we are going to see are very atrabilious.
"Candide" by Voltaire
I understand his temperament quite as well as I do yours, sir, which is atrabilious.
"Hunting the Skipper" by George Manville Fenn
All this political atrabiliousness did not improve Alfieri's temper; and could not have made it easier or more agreeable to live with him.
"The Countess of Albany" by Violet Paget (AKA Vernon Lee)
You will find them atrabilious, disobliging, and fierce.
"Letters to Eugenia" by Baron d'Holbach
His sallow, atrabilious features disclosed the tortures of his soul.
"The Sword of Honor, volumes 1 & 2" by Eugène Sue
Ariosto is playful, Aretino scurrilous, Alamanni peevish, Folengo atrabilious.
"Renaissance in Italy: Italian Literature" by John Addington Symonds