ex-directory

Nghĩa (Tiếng Anh)

Of a telephone number or its owner: not in the directory; unlisted.

Từ đồng nghĩa

unlisted

nonlisted

backstairs

covert

dark

hush-hush

mystic

occult

privy

restricted

sealed

arcane

sneak

sneaking

surreptitious

undercover

under-the-counter

undisclosed

under-the-table

sub-rosa

under wraps

secret

㊙️

backstair

Từ nguyên (Tiếng Anh)

From Latin ex (“out of”) + directory.