Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “delirious”


adjective     /dɪˈlɪriəs/
CONFUSED speaking or thinking in a confused way, often because of a fever or drugsFevers and infectious diseasesColds and flu
HAPPY extremely happy: delirious fansFeeling pleasure and happinessTaking pleasure in something
deliriously adverb
(Definition of delirious adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “delirious” in other dictionaries

Word of the Day


a person or group who receives money, advantages, etc. as a result of something else

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More