ex-directory

[ eks-di-rek-tuh-ree, -tree, -dahy- ]
/ ˌɛks dɪˈrɛk tə ri, -tri, -daɪ- /

adjective British.

(of a telephone number) unlisted in a telephone directory.

Origin of ex-directory

First recorded in 1935–40

British Dictionary definitions for ex-directory

ex-directory

adjective

mainly British not listed in a telephone directory, by request, and not disclosed to inquirers US and Canadian term: unlisted