Merriam-Webster Collegiate Dictionary - bilious

 adjective  Etymology: Middle French bilieux, from Latin biliosus, from bilis  Date: 1541  1.  a. of or relating to bile  b. marked by or suffering from liver dysfunction and especially excessive secretion of bile  c. appearing as if affected by a ~ disorder  2. of or indicative of a peevish ill-natured disposition  3. sickeningly unpleasant with clapboards painted red and ~ yellow — Sinclair Lewis  • ~ly adverb  • ~ness noun