adverb (r)

• lacking firmness or resoluteness(adv.all)

  Example:
  `I don't know,' he said indecisively.
  

  Antonym:
  decisively, resolutely
  

  source: wordnet30
• without finality; inconclusively(adv.all)

  Example:
  The battle ended indecisively; neither side had clearly won but neither side admitted defeat.
  

  Antonym:
  decisively
  

  source: wordnet30
• Without decision.(adverb)

  source: webster1913