Affected by or associated with nausea or vomiting. After the roller coaster ride, she felt bilious and had to sit down for a while.
Spiteful or bad-tempered. His bilious remarks during the meeting made everyone uncomfortable.
Relating to bile or the liver. The doctor noted the bilious discoloration of the patient's skin.
Of an unpleasantly lurid greenish-yellow color reminiscent of bile. She painted the kitchen walls a bilious shade of yellow-green.