1. Fully awake
   "so excited she was wide-awake all night"
   - unsleeping 
2. Fully alert and watchful
   - heads-up

See also: alert, awake, watchful

• goblet-shaped
• goblin
• gobs
• gobshite
• gobsmacked
• gobstopper
• goby
• god
• God Almighty
• God knows how
• god of war
• God tree
• God's acre
• God's Will
• God's Wisdom
• god-awful
• god-fearing
• Godard
• godchild
• goddam
• goddamn
• goddamned
• Goddard
• goddaughter
• goddess