unlisted
adjective
uk/ʌnˈlɪstɪd/ us/-ṱɪd/ FINANCE, STOCK MARKET (UK also unquoted)
relating to companies whose shares are not traded on a stock exchange:
unlisted investments/trading Investors put a value of $68 billion on the firm's unlisted investments.
The fund holds stakes in mostly unquoted British companies.
COMMUNICATIONS US (UK ex-directory)
not published in a phone company's list of customer phone numbers nor given by the phone company to people who ask fo it:
Landline customers pay $2 to $3 a month to have an unlisted number.