Source : Webster's Revised Unabridged Dictionary (1913)

Indifferently \In*dif"fer*ent*ly\, adv.
   In an indifferent manner; without distinction or preference;
   impartially; without concern, wish, affection, or aversion;
   tolerably; passably.

         That they may truly and indifferently minister justice,
         to the punishment of wickedness and vice, and to the
         maintenance of thy true religion, and virtue. --Book of
                                                  Com. Prayer
                                                  [Eng. Ed. ]

         Set honor in one eye and death i' the other, And I will
         look on both indifferently.              --Shak.

         I hope it may indifferently entertain your lordship at
         an unbending hour.                       --Rowe.

Source : WordNet®

indifferently
     adv : with indifference; in an indifferent manner; "she shrugged
           indifferently"