unpronounceable
adjective uk/ˌʌn.prəˈnaʊn.sə.bəl/ us/ˌʌn.prəˈnaʊn.sə.bəl/
难发音的;拗口的
difficult to say or (of something written) difficult to know how to say
Scotch whiskies have great character and unpronounceable names, like Bruichladdich. 苏格兰威士忌有很强的特色和难以念出来的名字，比如布鲁克拉迪。