The quality or state of being stubbornly unyielding
She fought with tenacity born of desperation.
In addition, all her planning and tenacity were paying off.
Still, his tenacity was what had inspired the name, not his size.
Bulldogs were formerly employed in bull-baiting, and the tenacity of their grip is proverbial.
The amir showed his usual ability in diplomatic argument, his tenacity where his own views or claims were in debate, with a sure underlying insight into the real situation.