'Sumptuousness' definitions:

Definition of 'sumptuousness'

noun

Wealth as evidenced by sumptuous living [syn: luxury, luxuriousness, opulence, sumptuousness]

noun

The quality possessed by something that is excessively expensive [syn: lavishness, luxury, sumptuosity, sumptuousness]

From: GCIDE

Sumptuous \Sump"tu*ous\, a. [L. sumptuosus, fr. sumptus expanse, cost: cf. F. somptueux. See Sumptuary.] Involving large outlay or expense; costly; expensive; hence, luxurious; splendid; magnificient; as, a sumptuous house or table; sumptuous apparel. [1913 Webster]
We are too magnificient and sumptuous in our tables and attendance. --Atterbury. [1913 Webster]
She spoke, and turned her sumptuous head, with eyes Of shining expectation fixed on mine. --Tennyson. [1913 Webster] -- {Sump"tu*ous*ly}, adv. -- {Sump"tu*ous*ness}, n. [1913 Webster]