Describes a person's attitude or will that does not give up easily; often used for persistent effort or resistance.
He fought the serious illness with a tenacious will.
The politician stubbornly insisted on his own opinion.
Describes physical toughness, durability, or robustness of objects, bodies, or systems.
These shoes are sturdy and can be worn for years.
I exercise every day to build a strong body.
He stubbornly resisted the police interrogation.
He is a wrestler famous for his tough physique.
The residents stubbornly opposed the plan.
This bridge is known for its sturdy structure.