Of or suitable for a palace: palatial furnishings. (adjective)
Of the nature of a palace, as in spaciousness or ornateness: a palatial yacht. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
"From Hong Kong to Honduras, and from South Africa to Scottsdale, I have spa-ed, soaked, swum, wined and dined in palatial hotels and resorts with perfect beds, sumptuous bathrooms, impeccable service and world-class designer décor."
"Some Moons back I was at a community meeting of leafy laned affluenzers, nobody under 45, or who did not live in palatial grandeur."