English

Definition of wakefulness noun from the Oxford Advanced Learner's Dictionary

 

wakefulness

 noun
noun
BrE BrE//ˈweɪkflnəs//
 
; NAmE NAmE//ˈweɪkflnəs//
 
[uncountable] (formal)
 
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the condition of not sleeping or being unable to sleep She began to drift between sleep and wakefulness. A sudden noise jolted him into wakefulness.