infiltrating

Definitions

Entering or gaining access to an organization, place, or group gradually, stealthily, or surreptitiously.

Passing through or into a substance or porous material by filtration or permeation.

Examples

The undercover agent spent months infiltrating the criminal organization to gather evidence.

Small roots were infiltrating the cracks in the old stone wall, slowly causing it to crumble.

Synonyms

penetrating permeating invading sneaking into infusing pervading encroaching

Antonyms

withdrawing retreating departing exiting evacuating leaving repelling