atrabilious

at·ra·bil·ious  (tr-blys) also at·ra·bil·i·ar (-bl-r)

adj.

1. Inclined to melancholy.

2. Having a peevish disposition; surly.

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[From Latin tra blis, black bile (translation of Greek melankhli) : tra, black; see ter- in Indo-European roots + blis, bile.]

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atra·bilious·ness n.

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atrabilious [ˌætrəˈbɪljəs], atrabiliar

adj

Rare irritable

[from Latin ātra bīlis black bile, from āter black + bīlis bile¹]

atrabiliousness  n

Thesaurus

Adj.

1.

atrabilious - irritable as if suffering from indigestion dyspeptic, liverish, bilious ill-natured - having an irritable and unpleasant disposition