1. An illegal, secret, or covert method of operation or action conducted in hiding to avoid detection or legal consequences
The investigation revealed clandestine procedures used to manipulate the financial records.
A investigação revelou procedimentos clandestinos utilizados para manipular os registros financeiros.
2. An undisclosed or surreptitious process carried out without official approval or public knowledge
The underground network operated through clandestine procedures to protect its members.
A rede clandestina operava através de procedimentos clandestinos para proteger seus membros.