Webster's Revised Unabridged Dictionary · 1913

Indifferently

Indifferently , adverb

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