noun (n)

• the trait of being difficult to handle or overcome

  satu sifat yang sukar untuk menangani atau mengatasi

  Synonym:
  mulishness, obstinance, stubbornness
  

  source: wordnet30
• resolute adherence to your own ideas or desires

  resolute karena ide atau keinginan anda sendiri

  Synonym:
  bullheadedness, obstinance, pigheadedness, self-will, stubbornness
  

  source: wordnet30
• A fixedness in will, opinion, or resolution that can not be shaken at all, or only with great difficulty; firm and usually unreasonable adherence to an opinion, purpose, or system; unyielding disposition; stubborness; pertinacity; persistency; contumacy.

  sebuah fixedness di akan, pendapat, atau resolusi yang tidak bisa diguncangkan sama sekali, atau hanya malah walau ada kesukaran; tegas dan biasanya rewel karena opini, tujuan, atau sistem; perangai tak tergoyahkan; stubborness; pertinacity; persistency; kedegilan.

  source: webster1913