1. In a perplexed manner
   "he looked at his professor perplexedly"
   - confoundedly

See also: perplexed

• due
• due care
• due date
• due diligence
• due east
• due north
• due process
• due process of law
• due south
• due west
• duel
• dueler
• duelist
• dueller
• duellist
• duenna
• duet
• duette
• duff
• duff up
• duffel
• duffel bag
• duffel coat
• duffer
• duffle