infiltrative
/ɪnˈfɪltrətɪv/
adjective
- Relating to or involving the gradual and secret entry into a place, organization, or system.
- The spy used infiltrative tactics to gather information from the enemy base.
- Doctors studied the infiltrative nature of the disease as it spread through the tissues.
- The company's security team trained to detect infiltrative attempts by hackers.
Synonyms