as in sneaking
to introduce in a gradual, secret, or clever way
over time, undercover agents infiltrated the crime ring and eventually busted their gambling racket
Synonyms & Similar Words
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Recent Examples of infiltrating
In at least some of the recent cases, this involved infiltrating the victim’ delivery apps like DoorDash or Uber Eats with malware, allowing thieves to learn the victim’s address and other key information.
—
Megan Cassidy, San Francisco Chronicle, 3 Apr. 2026
Still, Handala caused some chaos earlier this month after infiltrating US medical equipment provider Stryker and launching a data-wiping attack that affected tens of thousands of devices, including employee phones.
—Michael Kan, PC Magazine, 27 Mar. 2026
By 1968, there were some three thousand Mary Kay consultants; over the following decades, the number grew to hundreds of thousands as the company expanded worldwide, infiltrating even Russia and China.
—Dan Piepenbring, Harpers Magazine, 24 Mar. 2026
But the show instantly makes a rod for its own back by waiting until Episode 3 to turn its hero into the Count and get all the treasure-hunting, high society-infiltrating, and Machiavellian scheming underway.
—Jon O'Brien, IndieWire, 19 Mar. 2026
The levels of airborne chemicals detected in the gym’s basement suggest toxic vapors are infiltrating the building.
—Tony Briscoe, Los Angeles Times, 5 Mar. 2026
The development comes after long-standing fears about Chinese agents infiltrating London’s political circle.
—Emily Hallas, The Washington Examiner, 4 Mar. 2026
Security footage showed that Alexander Friedmann had been infiltrating the building for months.
—David Remnick, New Yorker, 2 Mar. 2026
Foreign agents are infiltrating colleges, think tanks, and corporations.
—Kim Hjelmgaard, USA Today, 26 Feb. 2026
Megan Cassidy, San Francisco Chronicle, 3 Apr. 2026
Still, Handala caused some chaos earlier this month after infiltrating US medical equipment provider Stryker and launching a data-wiping attack that affected tens of thousands of devices, including employee phones.
—Michael Kan, PC Magazine, 27 Mar. 2026
By 1968, there were some three thousand Mary Kay consultants; over the following decades, the number grew to hundreds of thousands as the company expanded worldwide, infiltrating even Russia and China.
—Dan Piepenbring, Harpers Magazine, 24 Mar. 2026
But the show instantly makes a rod for its own back by waiting until Episode 3 to turn its hero into the Count and get all the treasure-hunting, high society-infiltrating, and Machiavellian scheming underway.
—Jon O'Brien, IndieWire, 19 Mar. 2026
The levels of airborne chemicals detected in the gym’s basement suggest toxic vapors are infiltrating the building.
—Tony Briscoe, Los Angeles Times, 5 Mar. 2026
The development comes after long-standing fears about Chinese agents infiltrating London’s political circle.
—Emily Hallas, The Washington Examiner, 4 Mar. 2026
Security footage showed that Alexander Friedmann had been infiltrating the building for months.
—David Remnick, New Yorker, 2 Mar. 2026
Foreign agents are infiltrating colleges, think tanks, and corporations.
—Kim Hjelmgaard, USA Today, 26 Feb. 2026
Recent Examples of Synonyms for infiltrating
Verb
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Tina Peters is serving a nine-year prison term after being convicted of state crimes for sneaking in an outside computer expert to make a copy of her county's election computer system during a software update in 2021.—
Arkansas Online,
Arkansas Online,
3 Apr. 2026
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Tina Peters is serving a nine-year prison term after being convicted of state crimes for sneaking in an outside computer expert to make a copy of her county’s election computer system during a software update in 2021.—
Colleen Slevin,
Los Angeles Times,
2 Apr. 2026
Verb
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Given that three of the Red Sox’ previous five balls in play had an exit velocity of 107 mph or greater and a left-handed batter was coming to the plate, it could also be argued pretty convincingly that inserting lefty Wandy Peralta was appropriate.—
Kevin Acee,
San Diego Union-Tribune,
4 Apr. 2026
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The docking procedure The mating started with the male octopus extending his hectocotylus through the barrier’s opening, maneuvering it toward the female, touching her skin first and then inserting the appendage deep within her mantle.—
Jacek Krywko,
ArsTechnica,
2 Apr. 2026
Verb
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Investors were closely watching whether a two-week ceasefire between the United States and Iran was already slipping after a round of intense Israeli strikes on Lebanon that killed and injured hundreds.—
ABC News,
ABC News,
8 Apr. 2026
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That shift—from convenient to intentional—is what keeps a long-term relationship from slipping back into a roommate dynamic.—
Jenna Ryu,
SELF,
8 Apr. 2026
Verb
-
And moments before the horn sounded to stop play, Hubbard drilled a fairway metal from the rough over the winding creek in front of the green about 30 yards short of the flag.—
ABC News,
ABC News,
2 Apr. 2026
-
The new settlements come after years of winding litigation in Cook County Circuit Court.—
Talia Soglin,
Chicago Tribune,
2 Apr. 2026
Cite this Entry
“Infiltrating.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infiltrating. Accessed 11 Apr. 2026.
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