Definition of bilious adjective from the Oxford Advanced Learner's Dictionary

     

    bilious

     adjective
    adjective
    BrE BrE//ˈbɪliəs//
     
    ; NAmE NAmE//ˈbɪliəs//
     
     
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  1. 1feeling as if you might vomit soon I felt a little bilious after last night’s dinner. a bilious attack
  2. 2(of colours, usually green or yellow) creating an unpleasant effect a bilious green dress
  3. 3(formal) bad-tempered; full of anger
  4. Word Origin mid 16th cent. (in the sense ‘biliary’): from Latin biliosus, from bilis ‘bile’.
See the Oxford Advanced American Dictionary entry: bilious