inflexibility
  不屈曲性,頑固,不變性
  In·flex·i·bil·i·ty n.  The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness; inflexibleness; rigidity; firmness of will or purpose; unbending pertinacity; steadfastness; resoluteness; unchangeableness; obstinacy.
     The inflexibility of mechanism.   --A. Baxter.
     That grave inflexibility of soul.   --Churchill.
     The purity and inflexibility of their faith.   --T. Warton.
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  inflexibility
       n 1: a lack of physical flexibility [syn: inflexibleness] [ant:
             flexibility]
       2: the quality of being rigid and rigorously severe [syn: rigidity]
          [ant: flexibility]