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English definition of “bilious”

bilious

adjective uk   /ˈbɪl.i.əs/ us  
relating to an illness, caused by too much bile, that can cause vomiting: She suffered from bilious attacks.Digestive disorders formal If someone is bilious, they are always in a bad mood: a bilious old manBad-tempered extremely unpleasant: His shirt was a bilious shade of green.Unkind, cruel and unfeelingViolent or aggressiveTreating people or animals badlyInsults and abuse
(Definition of bilious from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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