firmity
/ˈfɜːrmaɪti/Definitions
1. noun
The state or condition of being firm or unyielding; unwavering firmness or resolve.
“Despite the criticism, she maintained her firmity in her stance on the issue.”
2. noun
A firm or unyielding quality, especially of the mind or character.
“His firmity in the face of adversity inspired his friends to stand by him.”