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adjective

delirious

dih-LEER-ree-uhs
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Delirious (adjective) means In a confused, disoriented state, often caused by illness or fever. Example: “He was delirious with fever and didn't recognize his own family.”

adjective
1
In a confused, disoriented state, often caused by illness or fever.
"He was delirious with fever and didn't recognize his own family."
2
Wildly excited or ecstatic.
"Fans were delirious when the team scored the winning goal."

How to use delirious

Learner’s notes

In plain EnglishEither confused and feverish from illness, or wildly, uncontrollably excited.

Common pairings
delirious with fever delirious with joy delirious fans
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Word forms

Comparative
more delirious
Superlative
most delirious
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Fill the gap

Can you complete this real example?

He was _____ with fever and didn't recognize his own family.

Etymology

From "delirium" plus -ous, ultimately from Latin delirus, "crazy" or "off track."

Origin: Latin

Antonyms

Related words

Rhymes for delirious

See all rhymes for delirious →

Frequently asked questions

What does “delirious” mean?
The word “delirious” means in a confused, disoriented state, often caused by illness or fever. In plain terms, either confused and feverish from illness, or wildly, uncontrollably excited.
How do you pronounce “delirious”?
“Delirious” is pronounced dih-LEER-ree-uhs (/dɪˈlɪə̯.ɹi.əs/ in IPA).
How do you use “delirious” in a sentence?
Here is “delirious” used in a sentence: “He was delirious with fever and didn't recognize his own family.”
What part of speech is “delirious”?
“Delirious” is an adjective.
Where does the word “delirious” come from?
The word “delirious” comes from Latin. From "delirium" plus -ous, ultimately from Latin delirus, "crazy" or "off track.".
How many meanings does “delirious” have?
“Delirious” has 2 distinct senses listed in this dictionary. The most common is: in a confused, disoriented state, often caused by illness or fever.

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