infested; infesting; infests
1
: to spread or swarm in or over in a troublesome manner
a slum infested with crime
shark-infested waters
2
: to live in or on as a parasite
Examples of infest in a Sentence
in desperation, we called in an exterminator because the house was infested with ants
Recent Examples on the Web
Looking down on his realm — a city infested by corruption scandals multiplying like mold spores — Carollo embraced the applause.
—
Linda Robertson, Miami Herald, 8 Jan. 2025
Growing up in a house with alcoholism and rage, infested with rats everywhere.
—Cynthia Littleton, Variety, 4 Jan. 2025
Singh says bed bugs could infest the clothes inside your luggage.
—Ashley J. Dimella Fox News, Fox News, 3 Jan. 2025
The disease is spread by drinking stagnant water infested with tiny fleas called copepods that contain Guinea worm larvae.
—Charles Schmidt, Scientific American, 29 Dec. 2024
See all Example Sentences for infest 
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Linda Robertson, Miami Herald, 8 Jan. 2025
Growing up in a house with alcoholism and rage, infested with rats everywhere.
—Cynthia Littleton, Variety, 4 Jan. 2025
Singh says bed bugs could infest the clothes inside your luggage.
—Ashley J. Dimella Fox News, Fox News, 3 Jan. 2025
The disease is spread by drinking stagnant water infested with tiny fleas called copepods that contain Guinea worm larvae.
—Charles Schmidt, Scientific American, 29 Dec. 2024
See all Example Sentences for infest
Dictionary Entries Near infest
Cite this Entry
“Infest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infest. Accessed 18 Jan. 2025.
Copy CitationKids Definition
infest
verb
in·fest
in-ˈfest 
1
: to spread or swarm in or over in a troublesome manner
a neighborhood infested with crime
shark-infested waters
2
: to live in or on as a parasite
horses infested with worms
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