The Collaborative International Dictionary of English v.0.48:

Indecisiveness \In`de*ci"sive*ness\, n.
   The state of being indecisive; unsettled state.
   [1913 Webster]

WordNet (r) 3.0 (2006):

indecisiveness
    n 1: doubt concerning two or more possible alternatives or
         courses of action; "his indecision was only momentary but
         the opportunity was lost" [syn: indecision,
         indecisiveness, irresolution]
    2: the trait of irresolution; a lack of firmness of character or
       purpose; "the king's incurable indecisiveness caused turmoil
       in his court" [syn: indecisiveness, indecision] [ant:
       decision, decisiveness]

Moby Thesaurus II by Grady Ward, 1.0:

116 Moby Thesaurus words for "indecisiveness":
   ambitendency, ambivalence, amiable weakness, amorphia, amorphism,
   amorphousness, anarchy, blobbiness, blurriness, breakability,
   brittleness, broadness, capriciousness, chance, chanciness,
   change of mind, changeableness, chaos, collapse, confusion,
   daintiness, delicacy, destructibility, disintegration, disorder,
   double-mindedness, dubiety, dubiousness, effeminacy, entropy,
   erraticism, erraticness, fence-sitting, fence-straddling,
   fickleness, flimsiness, fogginess, formlessness, fragility,
   frailty, frangibility, fuzziness, generality, haziness, hesitancy,
   hesitation, human frailty, ill-definedness, imprecision,
   inaccuracy, incalculability, incertitude, inchoateness,
   incoherence, inconstancy, indecision, indefinableness,
   indefiniteness, indemonstrability, indeterminacy,
   indeterminateness, indetermination, indeterminism, indistinctness,
   inexactness, infirmity of purpose, infirmity of will,
   inherent vice, instability, irresolution, laxity, lightness,
   looseness, luck, mercuriality, messiness, mistiness,
   moral weakness, mugwumpery, mugwumpism, obscuration, obscurity,
   orderlessness, randomness, second thoughts, shapelessness,
   shilly-shally, sleaziness, slightness, suspense, suspensefulness,
   sweepingness, tergiversation, to-and-fro, unaccountability,
   uncertainness, uncertainty, uncertainty principle, unclearness,
   undecidedness, undeterminedness, unforeseeableness,
   unpredictability, unprovability, unsettledness, unsettlement,
   unsubstantiality, unsureness, unverifiability, vacillation,
   vagueness, velleity, wavering, whimsicality, wispiness,
   womanishness