nonobservance

nonobservance
    n 1: a lack of conformity with law or custom or practice etc.
         [ant: {honoring}, {observance}]
    

Nonobservance \Non`ob*serv"ance\ (n[o^]n`[o^]b*z[~e]rv"ans), n.
   Neglect or failure to observe or fulfill.
   [1913 Webster]
    

96 Moby Thesaurus words for "nonobservance":
      Laodiceanism, abnegation, absentmindedness, carelessness,
      contradiction, contrariety, declension, declination, declinature,
      declining, denial, deprivation, deviation, disaccord,
      disaccordance, disagreement, disallowance, disclaimer,
      disclamation, disconformity, disobedience, disregard,
      disregardfulness, dissent, distraction, flightiness, flippancy,
      frivolousness, giddiness, heedlessness, holding back, inaccordance,
      inadvertence, inadvertency, inattention, inattentiveness,
      incongruity, inconsideration, inconsistency, incuriosity,
      indevotion, indevoutness, indifference, indifferentism,
      inobservance, levity, lightmindedness, lukewarm piety, nay,
      negation, negative, negative answer, negligence, nix, no,
      nonacceptance, noncompliance, nonconcurrence, nonconformance,
      nonconformism, nonconformity, nonconsent, nonreligiousness,
      obliviousness, originality, protest, recalcitrance, recantation,
      recusance, recusancy, refractoriness, refusal, regardlessness,
      rejection, repudiation, retention, shallowness, superficiality,
      thoughtlessness, thumbs-down, turndown, unalertness, unawareness,
      unconformity, unconsciousness, undevoutness, undutifulness,
      unheedfulness, unintentiveness, unmindfulness, unobservance,
      unreligiousness, unwariness, unwatchfulness, unwillingness,
      withholding