noun
tenacity
tuh-NAS-uh-tee/təˈnæsəti/
The ability to hold firmly despite resistance.
He shows tenacity by rebuilding the wooden-block arch each time it collapses.

Etymology
Tenacity turns the image of holding fast into a quality of purpose. A determined person keeps a figurative grip on a goal despite obstacles or delay.
In context
And then you develop this, um... kind of mental tenacity for always wanting to go further and just being able to physically go further, too.
More examples
- Her tenacity helps her finish the race despite painful blisters.
- The ivy clings to the wall with remarkable tenacity.
- Solving this problem takes patience and tenacity.
Forms
tenacity
tenacious adjective — Determined to continue or hold firmly.
tenaciously adverb — With firm resolve or a strong grip.
Similar words
- persistence
- Emphasizes continuing an effort rather than holding firmly.
- perseverance
- Emphasizes sustained effort through hardship, not a physical grip.
- determination
- Emphasizes firmness of purpose rather than demonstrated endurance.