/ Dictionary / Index D delirious: Meaning and Definition of Find definitions for: de•lir•i•ous Pronunciation: (di-lēr'ē-us), [key] — adj. affected with or characteristic of delirium. wild with excitement, enthusiasm, etc.: She was delirious with joy at the news. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: delirious (Thesaurus) deliriant delirium Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language