Definition of prosperousness in US English:

prosperousness

noun

  • See prosperous

    • ‘Successfully and peacefully attaining 40 years means that it is now mature enough to effectively tackle and overcome impediments in its path before a mammoth leap to prosperousness.’

Pronunciation

prosperousness

/ˈprɑsp(ə)rəsnəs//ˈpräsp(ə)rəsnəs/