tenacity.

1. Persistence in holding to an aim despite resistance or difficulty.

2. The strength with which something grips, holds together, or resists separation.

Use it for

Words that belong together

• remarkable tenacity
• tenacity of purpose

On the page

Her tenacity finally opened the archive.

Usage notes

Primary category: literary / elevated general. Forms: Usually uncountable; no ordinary plural in this sense. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: character, atmosphere, interpretation. Commonness: moderately common.