Inflexibility /(?)/

In·flex·i·bil·i·ty

Inflexibility

n.
  1. 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.