highfalutin
adjective informal (also hifalutin) uk/ˌhaɪ.fəˈluː.tɪn/ us/ˌhaɪ.fəˈluː.t̬ɪn/
浮夸的;装模作样的
trying to seem very important or serious, but without having a good reason for doing so and looking silly as a result
Synonyms: hoity-toity la-di-da