ex-directory [eks-di-rek-tuh-ree, -tree, -dahy-] Word Origin 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 inquirersUS and Canadian term: unlisted