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Showing results for infestation. Search instead for reinfestation.
Synonyms

infestation

American  
[in-fe-stey-shuhn] / ˌɪn fɛˈsteɪ ʃən /

noun

  1. the act of infesting; state of being infested.

  2. a harassing or troublesome invasion.

    an infestation of ants.


Other Word Forms

  • reinfestation noun

Etymology

Origin of infestation

1375–1425; late Middle English infestacio ( u ) n < Late Latin infestātiōn- (stem of infestātiō ). See infest, -ation

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.

Despite the roach infestation, JPMorgan dived into External link private credit, along with the rest of Wall Street, with Dimon reckoning his bank could handle the risk.

From Barron's • Mar. 25, 2026

A woman who had scabies has described the experience as a "nightmare" as figures show a rise in reported cases of the parasitic infestation.

From BBC • Jan. 27, 2026

The novel opens by describing a local gnat infestation that seems to have spread to the writing, because all the words containing “nat” have been given a silent “g,” as in “extermignate” and “gnaturally.”

From The Wall Street Journal • Jan. 7, 2026

During the COVID-19 pandemic, I was quarantined in an apartment building with a roach infestation.

From MarketWatch • Dec. 11, 2025

Thomas sat frozen in his chair, a sickness growing in his stomach like an infestation.

From "The Maze Runner" by James Dashner