impacted
Americanadjective
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tightly or immovably wedged in.
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Dentistry. noting a tooth so confined in its socket as to be incapable of normal eruption.
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driven together; tightly packed.
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densely populated or crowded; overcrowded.
an impacted school district.
adjective
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(of a tooth) unable to erupt, esp because of being wedged against another tooth below the gum
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(of a fracture) having the jagged broken ends wedged into each other
Other Word Forms
Etymology
Origin of impacted
First recorded 1675–85; obsolete adjective impact (from Latin impāctus, past participle of impingere “to fasten, cause to collide, strike,” equivalent to im- “in” + pag-, variant stem of pangere “to drive in, plant firmly” + -tus past participle suffix) + -ed 2; see im- 1, impinge
Explanation
If your doctor tells you that something is impacted, that's not a good thing. It means wedged together and unable to move. Wisdom teeth are often impacted, which makes one question how wise they actually are. A fractured bone can be impacted as well, which means the two broken ends are wedged together. Perhaps you could say that your Christmas stocking is so jam packed and impacted with goodies that you can barely pull anything out — but that's about the only non-painful association with the word imaginable.
Vocabulary lists containing impacted
This Week In Words: October 5–11, 2019
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Top Ten Most Relevant Words from the Third Republican Debate, October 28, 2015
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Vocabulary from the Eleventh Republican Debate March 3, 2016
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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.
“We have a huge responsibility to stabilize the households, businesses, and the communities within the impacted area, accelerate remediation and restore infrastructure.”
From Los Angeles Times ● Jul. 31, 2026
Anthropic is working with Irregular to assess the situation, it said, and the company has contacted or attempted to contact all three impacted organizations.
From Barron's ● Jul. 31, 2026
As a result, the ability of some charities to manage essential operations like payroll has been impacted, such as Maidstone-based 21 Together, which helps people with Down's syndrome.
From BBC ● Jul. 29, 2026
“While still very early, booking trends for 2027 are encouraging and pacing ahead of historical levels, including for itineraries where demand was impacted by geopolitical developments this year,” Chief Financial Officer Naftali Holtz said.
From The Wall Street Journal ● Jul. 28, 2026
This crater is 1.2 kilometers in diameter and was probably produced 15,000 to 40,000 years ago when a lump of iron 25 meters across impacted the Earth at a speed of 15 kilometers per second.
From "Cosmos" by Carl Sagan
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.
