scandalously

from WordNet (r) 3.0 (2006)

scandalously
    adv 1: in a scandalous manner; "you behaved scandalously when
           you walked out of that meeting!"

from The Collaborative International Dictionary of English v.0.48

Scandalously \Scan"dal*ous*ly\, adv.
   1. In a manner to give offense; shamefully.
      [1913 Webster]

            His discourse at table was scandalously unbecoming
            the dignity of his station.           --Swift.
      [1913 Webster]

   2. With a disposition to impute immorality or wrong.
      [1913 Webster]

            Shun their fault, who, scandalously nice,
            Will needs mistake an author into vice. --Pope.
      [1913 Webster]