durability
sturdiness / endurance / longevity / resilience
Noun
This term describes the capacity of an object to resist degradation or failure under stress. It carries a strong connotation of reliability and toughness, often used in industrial or consumer contexts to justify a higher price point or a long-term investment. When applied to abstract concepts like treaties or friendships, it shifts from physical toughness to temporal persistence. In these cases, it describes the resilience of a bond or agreement against the eroding effects of time or conflict.