English dictionary, thesaurus, translations & etymology
FreeDict.com
noun

delirium

dih-LIH-ree-uhm
Quiz me More like this

Delirium (noun) means a sudden state of confusion, disorientation, and sometimes hallucination, often caused by illness, fever, or drugs. Example: “The patient slipped into delirium after a severe infection.”

noun
1
A sudden state of confusion, disorientation, and sometimes hallucination, often caused by illness, fever, or drugs.
"The patient slipped into delirium after a severe infection."
2
Wild, uncontrolled excitement.
"The crowd erupted into delirium as the final whistle blew."

How to use delirium

Learner’s notes

In plain EnglishA confused, disoriented mental state caused by illness, or (more loosely) wild excitement.

Common pairings
fall into delirium feverish delirium delirium of the crowd
Vocabulary Flow
Build your vocabulary from words like delirium.
Vocabulary Flow serves the next word, and the next — meaning, pronunciation and an example each time. Practice at your level, or learn English in your own language.
Start vocabulary practice

Word forms

Plural
deliriums, deliria
Test yourself on “delirium” A quick quiz — meaning, synonyms & usage →

Fill the gap

Can you complete this real example?

The patient slipped into _____ after a severe infection.

Etymology

From Latin delirium, "madness" or "derangement," related to delirare, "to go off the furrow" — literally, to stray off track while plowing.

Origin: Latin

Related words

Rhymes for delirium

See all rhymes for delirium →

Frequently asked questions

What does “delirium” mean?
The word “delirium” means a sudden state of confusion, disorientation, and sometimes hallucination, often caused by illness, fever, or drugs. In plain terms, a confused, disoriented mental state caused by illness, or (more loosely) wild excitement.
How do you pronounce “delirium”?
“Delirium” is pronounced dih-LIH-ree-uhm (/dɪˈlɪɹ.i.əm/ in IPA).
How do you use “delirium” in a sentence?
Here is “delirium” used in a sentence: “The patient slipped into delirium after a severe infection.”
What part of speech is “delirium”?
“Delirium” is a noun.
Where does the word “delirium” come from?
The word “delirium” comes from Latin. From Latin delirium, "madness" or "derangement," related to delirare, "to go off the furrow" — literally, to stray off track while plowing.
How many meanings does “delirium” have?
“Delirium” has 2 distinct senses listed in this dictionary. The most common is: a sudden state of confusion, disorientation, and sometimes hallucination, often caused by illness, fever, or drugs.

People also searched