Definition of narcosis in English:



  • [mass noun] A state of stupor, drowsiness, or unconsciousness produced by drugs.

    ‘the patient was treated in prone position without narcosis’
    • ‘Specifically, they are compounds that produce narcosis or general anesthesia and relief from pain or analgesia.’
    • ‘Prolonged narcosis was introduced in the 1920s.’
    • ‘Avoid alcohol or drugs before diving, as this increases the effects of narcosis.’
    • ‘Once you begin on the slippery slope of hypothermia, secondary problems such as narcosis and decompression sickness begin to increase drastically.’
    • ‘One possibility is that CO2 narcosis impaired cognitive function.’
    lethargy, torpidity, sluggishness, inertia, inertness, inactivity, inaction, slowness, lifelessness, dullness, heaviness, listlessness, languor, languidness, stagnation, laziness, idleness, indolence, shiftlessness, sloth, slothfulness, apathy, accidie, passivity, weariness, tiredness, lassitude, fatigue, sleepiness, drowsiness, enervation, somnolence, narcosis
    View synonyms


Late 17th century: from Greek narkōsis, from narkoun make numb.