a. Also -atious, -aceous. [Fancifully f. SPLEND-ID a.: see -ACIOUS.] Very splendid; gorgeous, magnificent.
1843. Blackw. Mag., LIII. 379. The room is papered with some splendacious pattern in blue and gold.
1848. Thackeray, Trav. Lond., Wks. 1886, XXIV. 349. The silver dish-covers are splendaceous.
1872. [Earl Pembroke & G. H. Kingsley], S. Sea Bubbles, ix. 241. Loney made a splendacious bedstead to sling his mat to.
Hence Splendaciously; Splendaciousness.
1853. Thackeray, Lett., 14 Feb. On my first arrival, I was annoyed at the uncommon splendatiousness.
1872. Aliph Cheen (Yeldham), Lays of Ind (1876), 6. One of them more splendaciously dressed than the rest.