Definition of sleepiness in English:

sleepiness

noun ˈsliːpɪnəsˈslipinəs

mass noun

The state of being sleepy.
long road trips cause fatigue and sleepiness
Example sentencesExamples
- They may wake up frequently at night resulting in sleepiness and fatigue during the day.
- Severe daytime sleepiness is 60 per cent more likely in smokers than non-smokers.
- Various subjective measures of fatigue and sleepiness have been developed.
- Daytime fatigue or sleepiness is also a risk and could make driving or operating machinery dangerous.
- People do not necessarily associate fatigue and sleepiness with falling asleep.
Synonyms
drowsiness, tiredness, somnolence, languor, languidness, doziness
lethargy, sluggishness, inactivity, heaviness, lassitude, enervation, torpor, torpidity
Medicine narcosis, narcolepsy
rare somnolency, comatoseness, oscitancy, oscitation

Definition of sleepiness in US English:

sleepiness

nounˈslipinəsˈslēpēnəs

The state of being sleepy.
long road trips cause fatigue and sleepiness
Example sentencesExamples
- Daytime fatigue or sleepiness is also a risk and could make driving or operating machinery dangerous.
- Severe daytime sleepiness is 60 per cent more likely in smokers than non-smokers.
- People do not necessarily associate fatigue and sleepiness with falling asleep.
- They may wake up frequently at night resulting in sleepiness and fatigue during the day.
- Various subjective measures of fatigue and sleepiness have been developed.
Synonyms
drowsiness, tiredness, somnolence, languor, languidness, doziness

词汇	sleepiness
释义	Definition of sleepiness in English: sleepiness noun ˈsliːpɪnəsˈslipinəs mass noun The state of being sleepy. long road trips cause fatigue and sleepiness Example sentencesExamples They may wake up frequently at night resulting in sleepiness and fatigue during the day. Severe daytime sleepiness is 60 per cent more likely in smokers than non-smokers. Various subjective measures of fatigue and sleepiness have been developed. Daytime fatigue or sleepiness is also a risk and could make driving or operating machinery dangerous. People do not necessarily associate fatigue and sleepiness with falling asleep. Synonyms drowsiness, tiredness, somnolence, languor, languidness, doziness lethargy, sluggishness, inactivity, heaviness, lassitude, enervation, torpor, torpidity Medicine narcosis, narcolepsy rare somnolency, comatoseness, oscitancy, oscitation Definition of sleepiness in US English: sleepiness nounˈslipinəsˈslēpēnəs The state of being sleepy. long road trips cause fatigue and sleepiness Example sentencesExamples Daytime fatigue or sleepiness is also a risk and could make driving or operating machinery dangerous. Severe daytime sleepiness is 60 per cent more likely in smokers than non-smokers. People do not necessarily associate fatigue and sleepiness with falling asleep. They may wake up frequently at night resulting in sleepiness and fatigue during the day. Various subjective measures of fatigue and sleepiness have been developed. Synonyms drowsiness, tiredness, somnolence, languor, languidness, doziness
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