Obstinacy /(?)/

Ob·sti·na·cy

Obstinacy

n.
  1. 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.
    You do not well in obstinacy To cavil in the course of this contract.
    To shelter their ignorance, or obstinacy, under the obscurity of their terms.
  2. The quality or state of being difficult to remedy, relieve, or subdue; as, the obstinacy of a disease or evil.