delirium

noun
UK /dɪˈlɪə.ri.əm/
US /dɪˈlɪr.i.əm/

A confused state of mind where someone cannot think clearly.

The high fever left him in a state of delirium.

SYNONYMS

confusionbewildermentfrenzydazedisorientation

RELATED WORDS

delirioushallucinationfeveragitationconfusion

OTHER MEANINGS

2. A state of wild excitement or joy.

The fans were in a delirium of happiness after the win.

3. A temporary mental disturbance caused by illness or drugs.

The medication can cause delirium in older patients.

4. Extreme emotional agitation or frenzy.

He wandered the streets in a delirium of grief.