1. The quality of being luxurious, costly, and splendid in appearance or style
The sumtuousness of the palace's decorations left all visitors in awe.
A suntuosidade das decorações do palácio deixou todos os visitantes maravilhados.
2. Richness and elegance combined with great expense or magnificence
The sumtuousness of the royal banquet was unmatched.
A suntuosidade do banquete real era incomparável.