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English definition of “wakeful”

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wakeful

adjective uk   /ˈweɪk.fəl/ formal us  
not able to sleep, or used to describe a period of time when you are not able to sleep: We spent a wakeful night worrying about where he was. She lay there wakeful the whole night.
wakefulness
noun [U] uk   /-nəs/ us  
Translations of “wakeful”
in Chinese (Traditional) 不能入睡的, (一段時間內)難以入睡的…
in Chinese (Simplified) 不能入睡的, (一段时间内)难以入睡的…
(Definition of wakeful from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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