Source : Webster's Revised Unabridged Dictionary (1913)

Advantageously \Ad`van*ta"geous*ly\, adv.
   Profitably; with advantage.

Source : WordNet®

advantageously
     adv : in a manner affording benefit or advantage; "she married
           well"; "The children were settled advantageously in
           Seattle" [syn: {well}] [ant: {badly}, {badly}]