say it: roh-BUHST-nuhs
robustness is a noun meaning "the property of being strong and healthy in constitution". It carries 2 recorded senses.
the characteristic of being strong enough to withstand intellectual challenge
“the lack of robustness in the findings may be due to the small size of the sample”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for robustness come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.