robustness

noun

1. the property of being strong and healthy in constitution

   noun.attribute

   Synonyms hardiness lustiness validity

   Source: WordNet 3.0

2. the characteristic of being strong enough to withstand intellectual challenge

   noun.attribute

   Examples

   The lack of robustness in the findings may be due to the small size of the sample.

   Source: WordNet 3.0

3. The quality or state of being robust.

   noun

   Source: webster1913