robustness
US /roʊˈbʌst.nəs/
UK /roʊˈbʌst.nəs/

1.
the quality of being strong and healthy; strength and resilience.
:
•
The robustness of the new system was impressive.
•
They tested the robustness of the materials under extreme conditions.
the quality of being strong and healthy; strength and resilience.