infiltrate Synonym

espionage, surveillance, reconnaissance, intelligence-gathering, covert operation, undercover operation, secret mission, intelligence operation, spying mission, clandestine operation, black operation, infiltration, stakeout, shadowing, monitoring, observation, watch, tracking, tailing, eavesdropping, bugging, wiretapping, snooping, surveillance operation, intelligence activity, secret surveillance, undercover surveillance, covert surveillance, clandestine surveillance, intelligence surveillance, reconnaissance mission, secret reconnaissance, covert reconnaissance, clandestine reconnaissance, intelligence reconnaissance, spying activity, covert activity, clandestine activity, secret activity, undercover activity, covert mission, clandestine mission, intelligence mission, undercover mission, covert intelligence, clandestine intelligence, intelligence gathering, secret gathering [x]

espionage, surveillance, reconnaissance, intelligence-gathering, snooping, eavesdropping, infiltration, covert operation, undercover work, secret mission, stakeout, shadowing, tailing, bugging, wiretapping, monitoring, observation, tracking, following, clandestine activity, secret surveillance, intelligence operation, secret observation, secret monitoring, secret tracking, secret following, secret reconnaissance, secret intelligence-gathering, secret snooping, secret eavesdropping, secret infiltration, covert surveillance, covert monitoring, covert tracking, covert following, covert reconnaissance, covert intelligence-gathering, covert snooping, covert eavesdropping, covert infiltration, undercover surveillance, undercover monitoring, undercover tracking, undercover following, undercover reconnaissance, undercover intelligence-gathering, undercover snooping, undercover eavesdropping, undercover infiltration [x]

unpublicized,closed, unannounced, unrevealed, unreported, unheralded, unbroadcast, unproclaimed, unnoted, unmentioned, unexposed, untrumpeted, unpublicised [x]

unnoticed, unseen, invisible, hidden, concealed, undetected, unobserved, unperceived, unspotted, unrecognized, unremarked, unnoted, unmarked, unviewed, unexamined, unmonitored, untracked, untraced, uncharted, unrecorded, unregistered, unacknowledged, unheeded [x]

unseen, hidden, concealed, undetectable, imperceptible, obscured, shrouded, cloaked, unnoticeable, transparent, ghostly, ethereal, intangible, faint, elusive, secret, masked, veiled, incognito, unmanifested, latent, unexposed, unobserved, out of sight, camouflaged, indistinct, unrecognized, unacknowledged, unremarkable, spectral, shadowy, invisible man, non-visible, untraceable, unmarked, unidentifiable, obscure, unapprehended, unperceived, uncharted, unclaimed, unaccounted for, hidden from view, not visible, not seen, not detected, not perceived [x]

stealthy, secretive, surreptitious, clandestine, covert hidden, sneaky, sly, concealed, underhanded, furtive, elusive, discreet, quiet, unobtrusive, shifty, insidious, devious, masked, shadowy, private, low-key, backdoor, unnoticeable, veiled, ambiguous, indirect, obscure, hidden, incognito, unobserved, stealth, secret, unmarked, unacknowledged, unrecognized, untraceable, cryptic, enigmatic, mysterious, shadowed, dim, shaded, hushed [x]

geheim, verborgen, heimlich, verdeckt, diskret, insidiously, undercover, maskiert, unauffällig, schleichend, subtil, geheimnisvoll, hinterhältig, verschleiert, unbemerkt, still, nicht offen, geheim gehalten, nicht sichtbar, nicht offensichtlich, hintergründig, unentdeckt, schattig, hinter den Kulissen, nicht erkennbar, unklar, unzugänglich, nicht transparent, nicht direkt, indirekt, versteckt, nicht publik, nicht bekannt, nicht wahrnehmbar [x]