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
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Recent Examples of infiltrating
But the opening sequence was a rip-roaring cold open in which Mando and Grogu are infiltrating a base to take down an empire loyalist.
—
Brian Welk, IndieWire, 16 Apr. 2026
Though fur is very good at creating a warm, protective layer against wind, water is very good at infiltrating small spaces.
—Encyclopedia Britannica, 8 Apr. 2026
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
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
Brian Welk, IndieWire, 16 Apr. 2026
Though fur is very good at creating a warm, protective layer against wind, water is very good at infiltrating small spaces.
—Encyclopedia Britannica, 8 Apr. 2026
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
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
Recent Examples of Synonyms for infiltrating
Verb
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After the Combine, there was talk about going high in the second round or sneaking into the bottom of the first.—
Kirk Kenney,
San Diego Union-Tribune,
24 Apr. 2026
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And a thick hedgerow is no deterrent to foxes sneaking in to snatch small lambs.—
Literary Hub,
Literary Hub,
23 Apr. 2026
Verb
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Brown, however, opted against inserting McBride into the starting lineup, instead deciding to stick with Bridges, who is averaging just seven points on 25% shooting from 3-point range this series.—
Kristian Winfield,
New York Daily News,
25 Apr. 2026
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The Padres were down two runs at the start of the sixth, and given the environment and a day off Friday, Stammen chose to chase the victory by inserting high-leverage left-hander Adrian Morejón.—
Kevin Acee,
San Diego Union-Tribune,
23 Apr. 2026
Verb
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Now, Washington conventional wisdom, a 50-50 blend of dinner-party chatter and possibly sponsored social media posts, holds that the prize is slipping a bit from his grasp.—
Ben Smith,
semafor.com,
28 Apr. 2026
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Meanwhile, borrowing costs remain elevated, and wage gains are slipping, struggling to keep up with everything else getting more expensive.—
Tristan Bove,
Fortune,
28 Apr. 2026
Verb
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While access is currently limited, the park’s managing authority TANAPA have given the go-ahead for several new roads winding around towering kopjes, through grasslands and along a river.—
Condé Nast,
Condé Nast Traveler,
24 Apr. 2026
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Tucked down a winding road in Buckinghamshire, Burnham Beeches Hotel does not so much receive you as lower your pulse.—
Chas Newkey-Burden,
TheWeek,
24 Apr. 2026
Cite this Entry
“Infiltrating.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infiltrating. Accessed 1 May. 2026.
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