delirious

adjective

de·​lir·​i·​ous di-ˈlir-ē-əs How to pronounce delirious (audio)
1
: of, relating to, or characteristic of delirium
delirious mutterings
2
: affected with or marked by delirium
delirious with fever
delirious fans
deliriously adverb
deliriousness noun

Examples of delirious in a Sentence

As the child's temperature went up, he became delirious and didn't know where he was. He was delirious with fever. a group of delirious fans celebrating the team's victory
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Huge speakers amplify the booming beat against looming cliffs as ravers dance in delirious abandon. Anne Thompson, IndieWire, 12 Nov. 2025 The Wisconsin faithful stayed put, drenched and delirious, as if refusing to let the night slip away like so many before it. Ira Gorawara, New York Times, 9 Nov. 2025 But at its best, All’s Fair brings to mind the delirious Murphy heights of Nip/Tuck, 9-1-1, and Doctor Odyssey, then shoots past them like Icarus making his way toward the sun and an eventual, inevitable fall. Roxana Hadadi, Vulture, 5 Nov. 2025 The series of films, based on stories by Edgar Allan Poe, reached its creative high point with this proto-psychedelic fairy tale, whose bright colors and delirious mood predicted a groovy art movement that was then just around the corner. Katie Rife, Entertainment Weekly, 30 Oct. 2025 See All Example Sentences for delirious

Word History

Etymology

see delirium

First Known Use

1599, in the meaning defined at sense 1

Time Traveler
The first known use of delirious was in 1599

Browse Nearby Words

Cite this Entry

“Delirious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/delirious. Accessed 14 Nov. 2025.

Kids Definition

delirious

adjective
de·​lir·​i·​ous di-ˈlir-ē-əs How to pronounce delirious (audio)
1
: affected with, marked by, or characteristic of delirium
2
: wildly excited
delirious fans
deliriously adverb
deliriousness noun

Medical Definition

delirious

adjective
de·​lir·​i·​ous di-ˈlir-ē-əs How to pronounce delirious (audio)
1
: of, relating to, or characteristic of delirium
2
: affected with or marked by delirium
deliriously adverb

More from Merriam-Webster on delirious

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