Definition of sleepiness in English:


Line breaks: sleepi|ness
Pronunciation: /ˈsliːpɪnəs


[mass noun]
The state of being sleepy: long road trips cause fatigue and sleepiness
More example sentences
  • They may wake up frequently at night resulting in sleepiness and fatigue during the day.
  • Daytime fatigue or sleepiness is also a risk and could make driving or operating machinery dangerous.
  • Various subjective measures of fatigue and sleepiness have been developed.
drowsiness, tiredness, somnolence, languor, languidness, doziness; lethargy, sluggishness, inactivity, heaviness, lassitude, enervation, torpor, torpidity; Medicinenarcosis, narcolepsy
rare somnolency, comatoseness, oscitancy, oscitation

Definition of sleepiness in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
deviating from what is standard, normal, or expected