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

Relevance

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 Jurors heard testimony from three of Alsheikh’s victims who said they were packed into small, filthy, cold, wet cells that were infested with insects and other vermin. — Brittny Mejia, Los Angeles Times, 19 Sep. 2026 For bare soil or areas heavily infested with persistent weeds, apply a 2- to 3-inch-thick layer of organic mulch directly over the bare soil. — Manjot Kaur Sidhu, The Conversation, 10 Sep. 2026 The man takes on work as a trauma cleaner in hopes of facing his past, but the job soon begins to infest and unravel his mental state. — Matt Grobar, Deadline, 9 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 See All Example Sentences for infest
Recent Examples of Synonyms for infest
Verb
  • Minnesota lawmakers with broad bipartisan support this year approved a new watchdog agency tasked with fighting fraud that's plagued social services programs in the state for years.
    — Caroline Cummings, CBS News, 28 Oct. 2026
  • Previous administrations have been plagued by poor accountability on large-ticket projects, a problem the president’s critics say remains the case under Tinubu.
    — Alexander Onukwue, semafor.com, 28 Oct. 2026
Verb
  • About a week after that procedure, Bickelhaupt received a second opinion from a different neurosurgeon, who said the bone flap was infected and should be removed.
    — Zoey Thomas, Sun Sentinel, 29 Oct. 2026
  • The virus has also been known to infect sheep, goats, horses and alpacas.
    — Sahas Mehra, Scientific American, 28 Oct. 2026
Verb
  • However, its popularity comes with downsides — the neighborhood is often overrun by trick-or-treaters early in the evening, with crowds lasting well into the night.
    — Camila Pedrosa, Sacbee.com, 28 Oct. 2026
  • Stephen Hubbard, 74, is a Michigan native who was living in eastern Ukraine in 2022 when it was overrun by Russian forces and he was detained.
    — Michael Birnbaum, Washington Post, 20 Oct. 2026
Verb
  • However, a new type of gut-crawling worm being designed by engineers at the Massachusetts Institute of Technology (MIT), may actually be here to help.
    — Mack DeGeurin, Popular Science, 29 Oct. 2026
  • Firefighters bravely crawled past the fire before hoses reached it to pull the five family members out.
    — Kerry Burke, New York Daily News, 29 Oct. 2026
Verb
  • The awkward silence overwhelmed everyone until the major stepped in front of Helen.
    — Ron Farina, Hartford Courant, 1 Nov. 2026
  • For a curator not to take the venue seriously as an interlocutor is a fault that could overwhelm even very strong work.
    — Kristian Vistrup Madsen, Artforum, 1 Nov. 2026

Browse Nearby Words

Cite this Entry

“Infest.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infest. Accessed 4 Nov. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster