unlisted
adjective uk/ʌnˈlɪs.tɪd/ us/ʌnˈlɪs.t̬ɪd/
（证券）未挂牌的，未上市的
not included in a list of stock exchange company prices
unlisted securities/shares 未上市的证券／股票
US (UK ex-directory)未登入公共电话簿的
not included in the public list of phone numbers belonging to the customers of a telephone company
Doctors most often have unlisted home phone numbers to protect their privacy. 为了保护自己的隐私，医生们通常不把自己的住宅电话号码登在公共电话簿上。