As nouns the difference between robustness and solidity
is that robustness is the quality of being robust while solidity is the state or quality of being solid.
robustness
English
Noun
(-)
The quality of being robust.
solidity
English
Noun
The state or quality of being solid.
Moral firmness; validity; truth; certainty.
(geometry) The solid contents of a body; volume; amount of inclosed space.
Synonyms
* compactness
* consistency
* density
* fullness
* hardness
* massiveness
* solidness
* soundness
* strength
Antonyms
* fluidity
* hollowness
* instability
* openness
* weakness