[ ˌatrə'bɪlɪəs ]
■ adjective literary melancholy or ill-tempered.
Derivatives
~ness noun
Origin
C17: from L. atra bilis 'black bile', translation of Gk melankholia 'melancholy', + -ious .
ATRABILIOUS
Meaning of ATRABILIOUS in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004