infested
Americanadjective
-
overrun to an unwanted degree or in a troublesome manner by predatory animals or vermin (often used in combination).
It is so difficult to eradicate cockroaches from an infested area.
The only unguarded way of escape was through an alligator-infested swamp.
-
filled or riddled with anything undesirable or troublesome (usually used in combination).
The restaurant sat in an increasingly tourist-infested part of town.
verb
Other Word Forms
Etymology
Origin of infested
First recorded in 1890–1900; infest ( def. ) + -ed 2 ( def. ) for the adjective senses; infest ( def. ) + -ed 1 ( def. ) for the verb sense
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.
Michael Schmoyer -- the associate administrator for the country's Animal and Plant Health Inspection Service and head of the NWS Directorate -- said the infested beef calf "is not a danger to the food supply."
From Barron's ● Jun. 4, 2026
"In areas where these termites are common, it's just a matter of time before homes are infested, so this study is a good initial step toward alternative strategies for controlling them."
From Science Daily ● May 9, 2026
Every spring, caterpillars infested the fruit trees at their property’s edge, and every July the children watched from the porch as their father used a torch to burn out the larvae.
From The Wall Street Journal ● Apr. 17, 2026
Rats "the same size as a rabbit" have infested a city street where fly-tipping is an ongoing problem, residents say.
From BBC ● Mar. 6, 2026
Another of Dr. Hargraves’ patients was a professional man who had his office in an old building infested by roaches.
From "Silent Spring" by Rachel Carson
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.