mitigate
Americanverb (used with object)
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to lessen in force or intensity, as wrath, grief, harshness, or pain; moderate.
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to make less severe.
to mitigate a punishment.
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to reduce the risk or impact of harmful conditions or events.
To mitigate flood damage, new building regulations are being developed.
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to make (a person, one's state of mind, disposition, etc.) milder or more gentle; mollify; appease.
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Environmental Science. to restore or recreate (a habitat) in order to make up for losses due to development or agriculture.
No one has tried anything on this scale before to mitigate the grasslands bird habitat.
verb (used without object)
verb
Usage
Mitigate is sometimes wrongly used where militate is meant: his behaviour militates (not mitigates ) against his chances of promotion
Commonly Confused
Mitigate, whose central meaning is “to lessen” or “to make less severe,” is sometimes confused with militate, which means “to have effect or influence; weigh on.” This mix-up often occurs in the use of the phrase mitigate against, as follows: This criticism in no way mitigates (read militates ) against your going ahead with your research. Although this use of mitigate occasionally occurs in edited writing, it is rare and is widely regarded as an error.
Other Word Forms
Derived Forms
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mitigatornoun
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mitigationnoun
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mitigableadjective
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unmitigableadjective
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overmitigateverb
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mitigativeadjective
Conjugated Forms
Present
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have mitigatedperfect
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has mitigatedperfect 3rd person singular
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mitigatessingular 3rd person
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mitigatingparticiple
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am mitigatingprogressive 1st person singular
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is mitigatingprogressive 3rd person singular
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are mitigatingprogressive
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have been mitigatingperfect progressive
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has been mitigatingperfect progressive 3rd person singular
Past
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had mitigatedperfect
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mitigatedsimple
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had been mitigatingperfect progressive
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mitigatedparticiple
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were mitigatingprogressive plural
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was mitigatingprogressive singular
Future
Etymology
Origin of mitigate
First recorded in 1375–1425; late Middle English mitigaten, from Latin mītigātus (past participle of mītigāre “to calm, soften, soothe”), equivalent to mīt(is) “mild, soft, gentle” + -ig- (combining form of agere “to do, cause to do, make”) + -ātus verb suffix; see -ate 1
Explanation
Choose the verb mitigate when something lessens the unpleasantness of a situation. You can mitigate your parents' anger by telling them you were late to dinner because you were helping your elderly neighbor. The somewhat formal verb mitigate comes from the Latin roots mītis, "soft," and agere, "to do/act," which add up to "to soften." It is often used with words that indicate an outcome or something harmful. When you buy car insurance, you are trying to mitigate the risks involved with driving. Sunscreen is used to mitigate the effects of the sun on your skin.
Vocabulary lists containing mitigate
Grade 10, List 6
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This Week in Words: August 25 - 31, 2018
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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.
"This may allow for the development of novel strategies that target MHC class I and CD4+ T cells to leverage the beneficial side of immunity or mitigate unwanted immune responses."
From Science Daily • Jun. 4, 2026
The agency also spearheaded the construction of fly-sterilization plants in Texas, which are designed to release sterilized New World screwworm flies into the wild and mitigate reproduction.
From The Wall Street Journal • Jun. 4, 2026
Although legal costs surged, Feldstein Soto said she did her best to mitigate damage on a number of difficult cases she inherited when taking office in 2022.
From Los Angeles Times • Jun. 3, 2026
Paris hopes to keep its deficit at five percent of GDP this year, despite new spending measures to mitigate the impact of oil prices on certain sectors.
From Barron's • Jun. 3, 2026
A few congressmen and witnesses tried to mitigate the scapegoating of the Osage.
From "Killers of the Flower Moon" by David Grann
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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.