Dictionary
wake•ful
Pronunciation: (wāk'ful), [key]—
adj.
1. unable to sleep; not sleeping; indisposed to sleep:
Excitement made the children wakeful.
2. characterized by absence of sleep:
a wakeful night.
3. watchful; alert; vigilant:
a wakeful foe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.