# delirious

/dɪˈɫɪɹiəs/ (US) · /dɪlˈɪɹɪəs/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/delirious
Updated: 2026-05-18

## Definition

feeling extremely happy or excited. You can also use it to describe someone who is very sick and confused.

For teachers: feeling an intense state of happiness, excitement, or joy; alternatively, suffering from a state of mental confusion or disorientation caused by illness.

## Examples

- She was delirious with joy when she heard the news.
- The crowd was delirious with excitement as the home team scored the winning goal in the final minute.
- While the patient was delirious with fever, his family remained calm, hoping the high temperature would break before the sun rose.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.