obstinacy

noun2

1. •
   The state, or an act, of stubbornness or doggedness.

   • He finished only through a mixture of determined obstinacy and ingenuity.
2. •
   A group or herd of bison or buffalo.

   • Ahead, in the Little Missouri River bottom, Jakub spotted an obstinacy of bison ambling down the riverbank. — 2022