1) Classy 2) Deluxe 3) Elegant 4) Lavish 5) Opulent 6) Plush 7) Posh 8) Swank 9) Swanky 10) Tony 1) Elegant 2) Elegantly fancy 3) Five-star 4) Full of swank 5) Like a fancy hotel 6) Like a first-class hotel 7) Like five-diamond hotels 8) Like nice hotels 9) Luxurious 10) Luxurious, slang 11) Luxuriously elegant 12) Posh 13) Posh or snazzy 14) Sumptuous 15) Swank 16) Swanky 17) Upscale 
Ritzy is slang for luxurious or elegant.
[adj] - (informal) luxuriously elegant
adjective luxuriously elegant