Definition of infestnext
as in to plague
to spread or swarm over in a troublesome manner in desperation, we called in an exterminator because the house was infested with ants

Synonyms & Similar Words

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of infest Despite those efforts, New World screwworm infested thousands of animals in Panama and Mexico, and in June, the US Department of Agriculture confirmed the first US cases in years. — Jen Christensen, CNN Money, 7 Sep. 2026 Otherwise, the flour could go stale in a few months or become infested by bugs in the pantry. — Brandee Gruener, Southern Living, 7 Sep. 2026 Inspectors noted a rice bucket was heavily infested with roaches. — Lillie Davidson, Fort Worth Star-Telegram, 1 Sep. 2026 The inspection followed a hunger strike by detainees, who in a letter, complained about rotten or worm-infested food, medical neglect, and being coerced into signing deportation orders. — Vanessa Romo, NPR, 20 Aug. 2026 See All Example Sentences for infest
Recent Examples of Synonyms for infest
Verb
  • Speculation and conspiracy theories have plagued Kirk’s death, fueled even by public figures such as Candace Owens, a longtime friend of Kirk, who has been outspoken about her belief that his death was orchestrated in an elaborate plot.
    — Mackenzie Chase, The Washington Examiner, 14 Oct. 2026
  • Hoover’s replacement has thus far been a miss, and the problem that plagued this program in losses in each of the last two years has not changed.
    — Mac Engel October 14, Fort Worth Star-Telegram, 14 Oct. 2026
Verb
  • These viruses infect diverse deep-sea prokaryotes that drive vital cycles of carbon, nitrogen, phosphorus, sulfur, and metals.
    — Mrigakshi Dixit, Interesting Engineering, 14 Oct. 2026
  • Eventually, the capability could enable computer worms, which propagate without requiring human interaction and are capable of infecting unfamiliar IoT devices.
    — Dan Goodin, ArsTechnica, 14 Oct. 2026
Verb
  • Protesters went on to torch police stations across the country, overrun national security headquarters in multiple governorates, storm torture chambers, and unearth archives of horror and abuse.
    — Abdelrahman ElGendy, Time, 6 Oct. 2026
  • Bots are overrunning the web, with some executives forecasting a world in which autonomous traffic outnumbers human internet searchers 1,000-to-1.
    — Jacob Feldman, Sportico.com, 6 Oct. 2026
Verb
  • Researchers have developed a paper-thin foot membrane that lets crawling microrobots harvest electricity directly from the ground beneath them, ditching heavy onboard batteries by turning metal and silicon surfaces into an active power source.
    — New Atlas, New Atlas, 8 Oct. 2026
  • In real-world tests, the hand crawled across 14 different surfaces including smooth floors, metal grates, grass, and gravel.
    — Edd Gent, IEEE Spectrum, 8 Oct. 2026
Verb
  • Bettany is by turns hilariously perplexed, in the universal manner of parents engaging with teens everywhere, and achingly tender, in the more unusual way of a robot letting himself be overwhelmed by feeling for the first time.
    — Angie Han, HollywoodReporter, 12 Oct. 2026
  • Clashes last week between armed groups from rival communities in the central part of South Sudan left scores of people dead and overwhelmed a hospital with wounded people, officials said.
    — ABC News, ABC News, 12 Oct. 2026

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Cite this Entry

“Infest.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infest. Accessed 16 Oct. 2026.

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