As nouns the difference between durability and dependability
is that durability is permanence by virtue of the power to resist stress or force while dependability is the characteristic of being dependable; the ability to be depended upon.
durability
English
Noun
(durabilities)
Permanence by virtue of the power to resist stress or force.
dependability
English
Noun
(dependabilities)
The characteristic of being dependable; the ability to be depended upon.