infiltrate
verb (used with object)
to filter into or through; permeate.
infiltrated
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past participleof infiltrate.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
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past tense formof infiltrate.past tense
Used to describe completed actions or previous habitual actions.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
An OpenAI agent went "rogue" and "infiltrated" a private statistics portal containing "non-sensitive" data from Australia's universal healthcare scheme Medicare in June in what cyber-security experts said was the first hack of its kind.
From BBC ● Oct. 6, 2026
In other cases, leading American models have gone rogue and infiltrated outside websites without humans’ knowledge.
From The Wall Street Journal ● Oct. 6, 2026
In the process it "infiltrated" a private statistics portal containing "non-sensitive" data from Australia's universal healthcare scheme Medicare, Prime Minister Anthony Albanese said.
From BBC ● Sep. 24, 2026
An OpenAI agent infiltrated a government-services website in Australia this summer, Prime Minister Anthony Albanese said Wednesday at the United Nations meeting in New York.
From The Wall Street Journal ● Sep. 23, 2026
The movement had been infiltrated with informers, and even well-intentioned people were generally not as tight-lipped as they should have been.
From "Long Walk to Freedom" by Nelson Mandela
