Source : Webster's Revised Unabridged Dictionary (1913)

Indecisively \In`de*ci"sive*ly\, adv.
   Without decision.

Source : WordNet®

indecisively
     adv 1: lacking firmness or resoluteness; "`I don't know,' he said
            indecisively" [ant: {decisively}]
     2: without finality; inconclusively; "the battle ended
        indecisively; neither side had clearly won but neither
        side admitted defeat" [ant: {decisively}]