Antonyms of adj atrabilious

1 sense of atrabilious

Sense 1
atrabilious, bilious, dyspeptic, liverish -- (irritable as if suffering from indigestion)

INDIRECT (VIA ill-natured) -> good-natured -- (having an easygoing and cheerful disposition; "too good-natured to resent a little criticism"; "the good-natured policeman on our block"; "the sounds of good-natured play")

Similarity of adj atrabilious

1 sense of atrabilious

Sense 1
atrabilious, bilious, dyspeptic, liverish -- (irritable as if suffering from indigestion)
       => ill-natured (vs. good-natured) -- (having an irritable and unpleasant disposition)