1. With brightness
   "the stars shone brilliantly"
   - brightly, bright 
2. In an extremely intelligent way
   "he solved the problem brilliantly"

See also: brilliant

• demotivate
• demount
• Dempsey
• demulcent
• Demulen
• demulsify
• demur
• demure
• demurely
• demureness
• demurrage
• demurral
• demurrer
• demy
• demyelinate
• demyelination
• demystify
• demythologisation
• demythologise
• demythologised
• demythologization
• demythologize
• demythologized
• den
• Den Haag