The meaning of BILIOUS is of or relating to a yellow or greenish fluid that is secreted by the liver and that aids especially in the emulsification and absorption of fats : of or relating to bile.

formal If someone is bilious, they are always in a bad mood: a bilious old man extremely unpleasant:

Define bilious. bilious synonyms, bilious pronunciation, bilious translation, English dictionary definition of bilious. adj. 1. Of, relating to, or containing bile; biliary.

BILIOUS definition: relating to bile or to an excess secretion of bile. See examples of bilious used in a sentence.

Definition of bilious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 14, 2025 · bilious (comparative more bilious, superlative most bilious) Of or pertaining to something containing or consisting of bile. In emulation of her vestal whiteness.

bilious, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

If someone describes the appearance of something as bilious, they mean that they think it looks unpleasant and rather disgusting.

"Bilious" is sometimes misused to simply mean nauseous. While it can describe nausea, it originally encompassed more than just a queasy stomach, highlighting an irritably colored …

bil•ious /ˈbɪlyəs/ adj. Pathology, Physiology of or relating to bile. sick; ill; upset in the stomach: feeling bilious after drinking all night. peevish; irritable; cranky: the bilious old man next door. …