unreliability

unreliability
    n 1: the trait of not being dependable or reliable [syn:
         {undependability}, {undependableness}, {unreliability},
         {unreliableness}] [ant: {dependability}, {dependableness},
         {reliability}, {reliableness}]
    

88 Moby Thesaurus words for "unreliability":
      capriciousness, chanciness, changeableness, coquettishness,
      credibility gap, criticalness, danger, delicacy, desultoriness,
      deviability, doubtfulness, dubiousness, eccentricity, erraticism,
      faddishness, faddism, fickleness, flightiness, freakishness,
      frivolousness, hazard, hazardousness, implausibility,
      impulsiveness, inconceivability, inconsistency, inconstancy,
      incredibility, infirmity, insecurity, insolidity, instability,
      insubstantiality, irregularity, irresponsibility, levity,
      lightness, mercuriality, mercurialness, moodiness, peril,
      perilousness, precariousness, questionableness, restlessness, risk,
      riskiness, shakiness, shiftiness, shiftingness, skittishness,
      slipperiness, speculativeness, sword of Damocles,
      ticklish business, ticklishness, totteriness, touchiness,
      treacherousness, treachery, unauthenticity, unauthoritativeness,
      unbelievability, unbelievableness, uncertainty, undependability,
      unfaithworthiness, unfixedness, unhealthiness, unpredictability,
      unsafeness, unsettledness, unsolidity, unsoundness, unstableness,
      unsteadfastness, unsteadiness, unsubstantiality, unsureness,
      untenableness, untrustworthiness, variability, variation, variety,
      volatility, wantonness, waywardness, whimsicality