The Collaborative International Dictionary of English v.0.48:

Uncompliant \Uncompliant\
   See compliant.

Moby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "uncompliant":
   contrary, deaf to, declinatory, deviant, disobedient, disregardful,
   dissenting, dissident, inattentive, inconstant, indocile,
   inexorable, inobservant, insubordinate, intractable, negative,
   negligent, nonadherent, noncompliant, nonconformable,
   nonconforming, nonconsenting, noncooperating, noncooperative,
   nonobservant, obdurate, recalcitrant, recusant, refractory,
   rejective, rigid, single-minded, unadaptable, unadjustable,
   unbending, uncomplaisant, uncomplying, uncompromising,
   unconforming, unconsenting, uncooperative, unfaithful, unloyal,
   unobservant, unsubmissive, unswayable, untrue, unwilling,
   unyielding