Source : Webster's Revised Unabridged Dictionary (1913)

Realistically \Re`al*is"tic*al*ly\, adv.
   In the realistic manner.

Source : WordNet®

realistically
     adv 1: in a realistic manner; "let's look at the situation
            realistically" [ant: {unrealistically}]
     2: in a realistic manner; "the figure was realistically
        painted"