clandestine in Polish
clandestine in Polish
konspiracyjny
Done or kept in secret, sometimes to conceal an illicit or improper purpose.
pokątny
Done or kept in secret, sometimes to conceal an illicit or improper purpose.
tajny
Done or kept in secret, sometimes to conceal an illicit or improper purpose.
ukryty
Done or kept in secret, sometimes to conceal an illicit or improper purpose.