CEFR C1
delirium
noun
Meaning
A mental state in which a person is confused, disoriented, and unable to think clearly, often accompanied by hallucinations or delusions.
Examples
- The doctor warned that a high fever could lead to delirium.
- He was suffering from delirium tremens after drinking too much alcohol.
Synonyms: confusion, disorientation, derangement, insanity