Akademik

wakefulness
noun
1. a periodic state during which you are conscious and aware of the world (Freq. 4)
-

consciousness during wakefulness in a sane person is pretty well ordered and familiar

Hypernyms: ↑waking, ↑physical condition, ↑physiological state, ↑physiological condition
Hyponyms: ↑arousal, ↑vigil
2. a temporary state in which you are unable (or unwilling) to sleep
-

accept your wakefulness and sleep in its own contrary way is more likely to come

Syn: ↑sleeplessness
Ant: ↑sleepiness
Derivationally related forms: ↑sleepless (for: ↑sleeplessness), ↑wakeful
Hypernyms: ↑temporary state
3. the process of paying close and continuous attention
-

wakefulness, watchfulness, and bellicosity make a good hunter

-

vigilance is especially susceptible to fatigue

Syn: ↑watchfulness, ↑vigilance, ↑alertness
Derivationally related forms: ↑alert (for: ↑alertness), ↑vigilant (for: ↑vigilance), ↑wakeful, ↑watchful (for: ↑watchfulness)
Hypernyms: ↑attention
Hyponyms: ↑jealousy

Useful english dictionary. 2012.