Source : Webster's Revised Unabridged Dictionary (1913)

Confoundedly \Con*found"ed*ly\, adv.
   Extremely; odiously; detestable. [Colloq.] ``Confoundedly
   sick.'' --Goldsmith.

Source : WordNet®

confoundedly
     adv : in a perplexed manner; "he looked at his professor
           perplexedly" [syn: {perplexedly}]