The Collaborative International Dictionary of English v.0.48:

Intractability \In*tract`a*bil"i*ty\, n.
   The quality of being intractable; intractableness. --Bp.
   Hurd.
   [1913 Webster]

WordNet (r) 3.0 (2006):

intractability
    n 1: the trait of being hard to influence or control [syn:
         intractability, intractableness] [ant: flexibility,
         tractability, tractableness]

Moby Thesaurus II by Grady Ward, 1.0:

62 Moby Thesaurus words for "intractability":
   civil disobedience, contumaciousness, contumacy, defiance,
   disobedience, fractiousness, frowardness, immovability,
   immutability, incorrigibility, indiscipline, indocility,
   indomitability, inductility, inelasticity, inextensibility,
   inflexibility, infraction, infringement, insubordination,
   insuppressibility, irrepressibility, irresilience, irresiliency,
   lawbreaking, lawlessness, naughtiness, noncompliance,
   nonconformity, noncooperation, nonobedience, obstreperousness,
   passive resistance, recalcitrance, recalcitrancy, recusancy,
   refractoriness, resistance, restiveness, shrewishness,
   stubbornness, transgression, unalterability, unbendingness,
   uncontrollability, uncooperativeness, unduteousness, undutifulness,
   ungovernability, unlimberness, unmalleability, unmanageability,
   unmoldableness, unpliability, unruliness, unsubmissiveness,
   untamableness, unyieldingness, violation, waywardness, wildness,
   willful disobedience