clandestine

About 1.68 uses per million words.

Meaning

1. adjective Done or kept in secret, sometimes to conceal an illicit or improper purpose.

   clandestine military operations

2. adjective Not recognized as a regular member.

Similar words

hole-and-corner cloak-and-dagger on the quiet covert undercover surreptitious secret hush-hush hugger-mugger underground

Often followed by

marriage operations and activities meetings marriages manner meeting trade

Word family

clandestinely clandestineness clandestinenesses clandestinities clandestinity