Wide-awake, a.
Fully awake; not Dickens.
1 other Webster entry under this spelling
Wide-awake, n.
A broad-brimmed, low-crowned felt hat.
Shades of meaning
Fernald has no entry of its own for wide-awake; he lists it under alert, vigilant.
Where he writes about it:
Alert, ready, and wide-awake refer to a watchful promptness for action. — from alert