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1. Of, relating to, or containing bile; biliary.
a. Characterized by an excess secretion of bile.
b. Relating to, characterized by, or experiencing gastric distress caused by a disorder of the liver or gallbladder.
c. Appearing as if affected by such a disorder; sickly.
3. Resembling bile, especially in color: a bilious green.
4. Having a peevish disposition; ill-humored.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
in a bilious or bad manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014