wakefulness Meaning, Definition & Usage

1. noun a periodic state during which you are conscious and aware of the world
   
   • consciousness during wakefulness in a sane person is pretty well ordered and familiar
2. noun a temporary state in which you are unable (or unwilling) to sleep
   sleeplessness.
   
   • accept your wakefulness and sleep in its own contrary way is more likely to come
3. noun the process of paying close and continuous attention
   vigilance; watchfulness; alertness.
   
   • wakefulness, watchfulness, and bellicosity make a good hunter
   • vigilance is especially susceptible to fatigue

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