9 Grammatical Pitfalls


[dih-leer-ee-uh s] /dɪˈlɪər i əs/
Pathology. affected with or characteristic of delirium.
wild with excitement, enthusiasm, etc.:
She was delirious with joy at the news.
Origin of delirious
1590-1600; deliri(um) + -ous
Related forms
deliriously, adverb
deliriousness, noun
nondelirious, adjective
nondeliriously, adverb
nondeliriousness, noun
undelirious, adjective
undeliriously, adverb
2. thrilled, excited, ecstatic. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for delirious
  • My dad and uncle also got into the act, almost delirious with excitement at the thought of a wedding in the family.
  • This week, the brother had a stroke and now is delirious and uncommunicative.
  • Soon Cole too falls ill, becoming delirious.
  • The players at times were as delirious as their fans.
  • And snaps are much quicker and simpler than buttons when you're delirious with sleep deprivation.
  • They used to say that when one talks to himself in the shade it is because he has become delirious.
  • Anthony got loose on a fast break and served up an underhand alley-oop to James, who slammed it home to delirious cheers.
  • I'm delirious from lack of sleep these last couple of days.
  • He has been delirious a portion of the time.
  • But I was delirious from the medication anyway and the days passed in a blur.
British Dictionary definitions for delirious


affected with delirium
wildly excited, esp with joy or enthusiasm
Derived Forms
deliriously, adverb
deliriousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for delirious

1703, from stem of delirium + -ous. Figurative use attested from 1791. Related: Deliriously.

Online Etymology Dictionary, © 2010 Douglas Harper
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delirious in Medicine

delirious de·lir·i·ous (dĭ-lēr'ē-əs)
Of, suffering from, or characteristic of delirium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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