1
soaker
1
stool pigeon
1
trespasser
1
undercover agent(noun, expression, idiom, plant, spy)
0
gate-crasher
0
indoctrinator
0
oozer
0
patrol(noun, plant, mole)
0
permeator
0
accessor
0
agent(noun, plant, spy, mole)
0
blender
0
breakwater
0
bulwark
0
burglar
0
counterspy
0
diffuser
0
emissary(noun, plant, mole)
0
espionage agent(noun, expression, plant, spy, mole)
0
espy
11 years ago|3.2k views|share |citing 
APASmart Define. (2015). infiltrator thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/infiltrator/thesaurus/synonyms
ChicagoSmart Define. 2015. "infiltrator thesaurus" https://smartdefine.org/infiltrator/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, infiltrator thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/infiltrator/thesaurus/synonyms>.
MLASmart Define. "infiltrator thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/infiltrator/thesaurus/synonyms>