Pertinacity

pertinacity
    n 1: persistent determination [syn: {doggedness},
         {perseverance}, {persistence}, {persistency}, {tenacity},
         {tenaciousness}, {pertinacity}]
    

Pertinacity \Per`ti*nac"i*ty\, n. [Cf. F. pertinacit['e].]
   The quality or state of being pertinacious; obstinacy;
   perseverance; persistency. --Macaulay.
   [1913 Webster]

   Syn: See {Obstinacy}.
        [1913 Webster]
    

95 Moby Thesaurus words for "pertinacity":
      application, assiduity, assiduousness, balkiness, bigotry,
      bulldog courage, bulldog tenacity, bullheadedness, concentration,
      constancy, demandingness, determination, diligence,
      dogged perseverance, doggedness, dogmatism, endurance, engrossment,
      exigency, fanaticism, fidelity, fixed mind, fortitude, gameness,
      gaminess, grittiness, hardheadedness, hardihood, hardiness,
      headstrongness, importunacy, importunateness, importunity,
      indefatigability, industriousness, industry, inflexible will,
      insistence, insistency, intolerance, loyalty, mettlesomeness,
      mulishness, nerviness, obduracy, obstinacy, obstinateness,
      opinionatedness, overzealousness, patience, patience of Job,
      permanence, perseverance, persistence, persistency,
      pertinaciousness, pigheadedness, plodding, pluckiness, plugging,
      preoccupation, pressingness, pressure, relentlessness,
      resoluteness, resolution, restiveness, sedulity, sedulousness,
      self-will, single-mindedness, singleness of purpose, slogging,
      spunkiness, stability, stamina, staying power, steadfastness,
      steadiness, stick-to-itiveness, stiff neck, stiff-neckedness,
      strongheadness, stubbornness, sulkiness, sullenness, tenaciousness,
      tenacity, tirelessness, uncooperativeness, unregenerateness,
      unremittingness, unswerving attention, urgency, willfulness