Webster's 1828 Dictionary

SLEEPINESS

n.Drowsiness; inclination to sleep.

 

Webster's 1913 Dictionary

SLEEPINESS

SLEEPINESS Sleep "i *ness, n.

 

Defn: The quality or state of being sleepy.

 

New American Oxford Dictionary

sleepiness

sleep i ness |ˈslēpēnis | ▶noun the state of being sleepy: long road trips cause fatigue and sleepiness.

 

Oxford Dictionary

sleepiness

sleepi |ness |ˈsliːpɪnɪs | ▶noun [ mass noun ] the state of being sleepy: long road trips cause fatigue and sleepiness.

 

American Oxford Thesaurus

sleepiness

sleepiness noun did you tell the doctor about your chronic sleepiness? drowsiness, tiredness, somnolence, languor, languidness, doziness; lethargy, sluggishness, lassitude, enervation.

 

Oxford Thesaurus

sleepiness

sleepiness noun drowsiness, tiredness, somnolence, languor, languidness, doziness; lethargy, sluggishness, inactivity, heaviness, lassitude, enervation, torpor, torpidity; Medicine narcosis, narcolepsy; rare somnolency, comatoseness, oscitancy, oscitation.

 

Sanseido Wisdom Dictionary

sleepiness

sl é ep i ness /slíːpinəs /名詞 U 眠たさ, 眠気 .