From Longman Dictionary of Contemporary Englishupscaleup‧scale /ˈʌpskeɪl/ adjective American English EXPENSIVErelating to people from a high social class who have a lot of money SYN upmarket British English an affluent upscale audience
Examples from the Corpus
upscale• Skyservice is a small but well-established Toronto-based charter carrier that announced in June it wants to start an upscale airline.• Go into any upscale Bay Area restaurant and ask for a glass of white wine.• an upscale department store• There is no Metro stop in the upscale neighborhood. 