Definition of wakefulness in US English:

wakefulness

noun

  • See wakeful

    • ‘We dozed, never quite letting ourselves go, ready to jump into confused wakefulness, anticipating action of some kind.’
    • ‘I staggered into wakefulness at 11:45 when Graham rang to say good night.’
    • ‘I sort of half-slept last night, suspended in a weird state between wakefulness and dreaming, kept anchored in the world by the sound of the radio.’
    • ‘Something intense is going on when we sleep; in fact, on an EEG trace it looks very similar to wakefulness.’
    • ‘I do this in the night sometimes, in moments of partial wakefulness.’

Pronunciation

wakefulness

/ˈwākfəlnəs//ˈweɪkfəlnəs/