Find Synonyms

infiltrate Synonyms

Another word for infiltrate

Choosing another word for infiltrate depends on context, so the 10 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• verb (Context 1)

To enter or gain access to an organization, place, or group surreptitiously and gradually, especially in order to acquire secret information or cause disruption from within.

Usage Example

"Undercover journalists managed to penetrate the fraudulent investment firm to expose its illegal practices."

Strongest
penetrate
Strong
slip into
creep into
worm into
Weak
invade

• verb (Context 2)

To permeate or pass into a substance, soil, or tissue gradually by filtering through tiny pores or interstices (of a liquid, gas, or cells).

Usage Example

"Heavy rainwater began to permeate the porous limestone, replenishing the underground aquifer."

Strongest
permeate
percolate
Strong
seep
saturate
Weak
imbue

Opposites of infiltrate

The opposite of infiltrate shifts depending on context. Common opposites include:

exude
withdraw
drain
evacuate
See all opposites of infiltrate

• Nearby Words

infield
infighting
infill
infiltrate
infiltration
infiltrator
infinite

Cite this Entry

Wordmom. (2026). Synonyms for Infiltrate. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/infiltrate
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