AskDefine | Define stupor

Dictionary Definition



1 the feeling of distress and disbelief that you have when something bad happens accidentally; "his mother's deathleft him in a daze"; "he was numb with shock" [syn: daze, shock]
2 marginal consciousness; "his grogginess was caused as much by exhaustion and by the blows"; "someone stole his wallet while he was in a drunken stupor" [syn: grogginess, stupefaction, semiconsciousness]

User Contributed Dictionary



stupere 'to be astounded'.


  1. A state of reduced consciousness or sensibility
  2. a state in which one has difficulty in thinking or using one's senses


Extensive Definition

Stupor represents an important loss in cognitive functions. The word derives from the Latin "stupure," meaning insensible. Being characterised by impairments of reactions to external stimuli, it usually appears in infectious diseases, complicated toxic states, mental illnesses (e.g. schizophrenia), vascular illnesses (e.g. hypertensive encephalopathy), neoplasms (e.g. brain tumors), and so on.


If not stimulated externally, a patient with Stupor will be in a sleepy mode most of the time. Short periods of restricted responsivity can be achieved by intense stimulation (e.g. pain, bright light, loud noise).

Localisation of brain lesions

Lesions of the Ascending Reticular Activation System on height of the Pons and Metencephalon have been shown to cause Stupor. The incidence is higher after left-sided lesions.

See also


  • Ahuja 4th Edition Page 206 ISBN 81-7179-662-1
  • Zakboek Neuropsychologische Symptomatologie Page 37 ISBN 90-334-3995-6
stupor in Danish: Stupor
stupor in German: Stupor
stupor in French: État stuporeux
stupor in Italian: Stupor
stupor in Polish: Stupor
stupor in Russian: Сопор
stupor in Serbian: Ступор
stupor in Swedish: Stupor

Synonyms, Antonyms and Related Words

KO, abstraction, abulia, acedia, alienation, aloofness, amnesia, anesthesia, anxiety, anxiety equivalent, anxiety state, apathy, ataraxia, ataraxy, benumbedness, blackout, blah, blahs, boredom, catalepsy, cataplexy, catatonia, catatonic stupor, catatony, coma, comatoseness, compulsion, daydreaming, daze, dejection, depression, detachment, disinterest, dispassion, dream state, drowsiness, dullness, elation, emotionalism, encephalitis lethargica, enervation, ennui, euphoria, faint, fatigue, folie du doute, fugue, fugue state, grayout, heartlessness, heaviness, hebetude, high, hopelessness, hypnotic trance, hypochondria, hysteria, hysterics, inanimation, inappetence, indifference, inertia, inertness, insensibility, insouciance, jadedness, kayo, knockout, lack of appetite, lackadaisicalness, languidness, languishment, languor, languorousness, lassitude, laziness, lenitude, lentor, lethargicalness, lethargy, lifelessness, lipothymia, lipothymy, listlessness, mania, melancholia, mental distress, narcohypnosis, narcolepsy, narcoma, narcosis, narcotic stupor, narcotization, nirvana, nirvana principle, nod, nonchalance, nothingness, numbness, oblivion, obliviousness, obsession, oscitancy, passiveness, passivity, pathological indecisiveness, phlegm, phlegmaticalness, phlegmaticness, plucklessness, preoccupation, psychalgia, psychomotor disturbance, resignation, resignedness, reverie, satedness, sedation, semiconsciousness, senselessness, shock, sleep, sleepiness, sleeping sickness, sleepwalking, sloth, slothfulness, slowness, sluggishness, slumber, somnambulism, somnolence, sopor, soporifousness, spiritlessness, spunklessness, stupefaction, supineness, swoon, syncope, thanatosis, tic, torpidity, torpidness, torpitude, torpor, trance, twitching, unconcern, unconsciousness, unresponsiveness, weariness, withdrawal, withdrawnness, world-weariness
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