Subtle infiltrator Synonyms

Subtle replaced

insidious infiltrator

Definitions for Subtle

(adjective) clever at attaining one's ends by indirect and often deceptive means
(adjective) made or done with extreme care and accuracy
(adjective) satisfying or pleasing because of fineness or mildness

SI abbreviation

SI is an abbreviation for Subtle Infiltrator

What does SI stand for?

SI stands for "Subtle Infiltrator"

Infiltrator replaced

subtle investigator

Definitions for Infiltrator

(noun) someone who takes up a position surreptitiously for the purpose of espionage
(noun) an intruder (as troops) with hostile intent