delirium

Reading level: hard

Estimated CEFR level: C1 — Advanced

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun state of violent mental agitation
  2. noun a usually brief state of excitement and mental confusion often accompanied by hallucinations

Etymology

Borrowed from Latin dēlīrium (“derangement, madness”).

In classic literature

Synonyms

craze, frenzy, fury, hysteria

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