Dashingly

from WordNet (r) 3.0 (2006)

dashingly
    adv 1: in a highly fashionable manner; "he was dashingly
           handsome"

from The Collaborative International Dictionary of English v.0.48

Dashingly \Dash"ing*ly\, adv.
   Conspicuously; showily. [Colloq.]
   [1913 Webster]

         A dashingly dressed gentleman.           --Hawthorne.
   [1913 Webster]