sleepiness

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a very sleepy state
- sleepiness causes many driving accidents
• Syn:
drowsiness, somnolence
• Ant:
wakefulness
• Derivationally related forms:
somnolent (for: somnolence), drowsy (for: drowsiness), sleepy
• Hypernyms:
temporary state
• Hyponyms:
oscitancy, oscitance

• Từ đồng nghĩa / Synonyms:
  drowsiness, somnolence
• Từ trái nghĩa / Antonyms:
  wakefulness, sleeplessness