noun de·lir·i·um \di-ˈlir-ē-əm\

: a mental state in which you are confused and not able to think or speak clearly usually because of fever or some other illness

: a state of wild excitement and great happiness

Full Definition of DELIRIUM

:  an acute mental disturbance characterized by confused thinking and disrupted attention usually accompanied by disordered speech and hallucinations
:  frenzied excitement <he would stride about his room in a delirium of joy — Thomas Wolfe>

Examples of DELIRIUM

  1. In her delirium, nothing she said made any sense.
  2. <shoppers running around in a delirium the day before Christmas>

Origin of DELIRIUM

Latin, from delirare to be crazy, literally, to leave the furrow (in plowing), from de- + lira furrow — more at learn
First Known Use: circa 1563

Other Psychology Terms

fetish, hypochondria, intelligence, mania, narcissism, neurosis, pathological, psychosis, schadenfreude, subliminal
DELIRIUM Defined for Kids


noun de·lir·i·um \di-ˈlir-ē-əm\

Definition of DELIRIUM for Kids

:  a condition of mind in which thought and speech are confused usually because of a high fever or other illness
:  wild excitement
Medical Dictionary


noun de·lir·i·um \di-ˈlir-ē-əm\

Medical Definition of DELIRIUM

:  a mental disturbance characterized by confusion, disordered speech, and hallucinations


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