persona non gra·ta /pəˌsəʊnə nɒn ˈɡrɑːtə $ pərˌsoʊnə nɑːn ˈɡrætə/ noun be/become/be declared persona non grata to be not welcome in a particular place because of something that you have done – used especially when a foreign government orders you to go home 是/成为/被宣布为不受欢迎的人〔尤用在一国政府命令某人返回自己国家时〕