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Definition of wakefulness
wakefulness
/ˈweɪk.fəl.nəs/
wake · ful · ness
Adverb:wakefully
•Adjective:wakeful
wakefulness Lexical Profile
CEFR
C1
Grade
9
Tier
2
Usage
Top 10k
Syllables
3
wakefulness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The state or condition of being awake, conscious, and alert rather than asleep.
Example
"Researchers monitored the brain waves of the participants during periods of both deep sleep and quiet wakefulness."
2
Inability or failure to sleep at night; sleeplessness.
Example
"Drinking strong coffee late in the evening often leads to hours of restless wakefulness."
Synonyms
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Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Wakefulness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/wakefulness