- Conducted with secrecy; withdrawn from public notice,
usually for an evil purpose; kept secret; hidden; private; underhand;
as, a clandestine marriage.
Meaning of 'clandestine' (Princeton's WordNet)
1 . clandestine
[ s]
Meaning (1): - conducted with or marked by hidden aims or methods
Clandestine operation Clandestine operation refers to an operation sponsored or conducted by governmental departments or agencies in such a way as to assure secrecy or concealment.
Clandestine intelligence collection Clandestine intelligence collection— the acquisition of protected intelligence information in a way designed to conceal the nature of the operation and protect the source.
Clandestine Clandestine refers to any activity or operation that is sponsored or conducted by governmental departments or agencies with the intent to assure secrecy and concealment.