Definition of drowsiness in English:



mass noun
  • A feeling of being sleepy and lethargic; sleepiness.

    ‘this drug can cause drowsiness’
    • ‘The struggle against drowsiness and fatigue is the struggle for meaning.’
    • ‘The authors further justify the use of butterbur because it does not produce the drowsiness and fatigue typical of antihistamines.’
    • ‘At the stage of lethargy and drowsiness, cerebral function is affected and the person may not be able to think well enough to make an escape effort.’
    • ‘Last year, driver drowsiness was thought to be the cause of 40,000 serious injuries and 3,500 deaths on the roads.’
    • ‘I have had a few nights when I have had difficulty sleeping and pondered her case until drowsiness got the better of me again.’
    sleepiness, somnolence, tiredness, fatigue, weariness, exhaustion
    View synonyms