주로 불법적이거나 부적절한 이유로 남몰래 은밀하게 행해지는
Kept secret or done secretively, especially because it is illegal or considered improper.
예문:
"The spies held a clandestine meeting in a dimly lit cafe to exchange sensitive documents."
"They carried on a clandestine affair for years before anyone in the small town suspected a thing."
"The organization was accused of making clandestine deals with foreign governments to bypass trade regulations."