Definition of robustiousness in English:

robustiousness

noun

  • Robustness; boisterousness.

Origin

Early 17th century; earliest use found in George Abbot (1562–1633), archbishop of Canterbury. From robustious + -ness.

Pronunciation

robustiousness

/rə(ʊ)ˈbʌstɪəsnəs//rə(ʊ)ˈbʌstʃəsnəs/