big (very …, esp. combined with an element of luxury) adj. pharaonic

A teapot bunker retails for just shy of $40,000; a more pharaonic model, complete with swimming pool and hot tub, bowling alley, and home theater, goes for $8 million. (Annie Lowrey, “The Bunker Magnates Hate To Say They Told You So,” The Atlantic, 9/15/2020.)

This word, when used in the above sense, can also be a synonym for large, enormous, huge, gigantic, massive, giant and colossal