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Synonyms

vitiate

American  
[vish-ee-eyt] / ˈvɪʃ iˌeɪt /

verb (used with object)

vitiated, vitiating
  1. to impair the quality of; make faulty; spoil.

  2. to impair or weaken the effectiveness of.

  3. to debase; corrupt; pervert.

  4. to make legally defective or invalid; invalidate.

    to vitiate a claim.


vitiate British  
/ ˈvɪʃɪˌeɪt /

verb

  1. to make faulty or imperfect

  2. to debase, pervert, or corrupt

  3. to destroy the force or legal effect of (a deed, etc)

    to vitiate a contract

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of vitiate

First recorded in 1525–35; from Latin vitiātus, past participle of vitiāre “to spoil, impair,” derivative of vitium “blemish, defect, fault” + -ātus; see vice 1, -ate 1

Explanation

As some sneaky five-year-olds know, crossing one’s fingers while making a promise is an effective way to vitiate, or destroy the validity of, an agreement. Vitiate is often used when a legal agreement is made invalid, but it can also refer to the debasement or corruption of something or someone. If a malicious five-year-old on the playground teaches the other children to lie with their fingers crossed, she would be responsible for vitiating the playground community. The first syllable of this word is pronounced "vish," like the first syllable in vicious.

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Vocabulary lists containing vitiate

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.

“I see these events as a disturbing pattern which will lead, eventually, to injustice and further vitiate the atmosphere prevailing in some parts of the country and stoke fires and retaliation,” Mr. Lokur said.

From New York Times • May 11, 2022

The rule recognized that new technologies cannot be employed to vitiate the right to be secure promised by the Fourth Amendment.

From Slate • Jul. 22, 2021

In the case of McNally, who presented as a teenage boy throughout a relationship with a teenage girl, the Court of Appeal determined that "deception as to gender can vitiate consent".

From BBC • Sep. 25, 2019

These “young men and mayds” were convicted by the magistrate of “meeting at unseasonable times, and of night walking, and companying together contrary to civility and good nurture, tending to vitiate one another.”

From The New Yorker • Oct. 4, 2018

To translate capacity into actuality, as the conception of the fixed self seems to do, is to vitiate the whole idea of possibility.

From John Dewey's logical theory by Howard, Delton Thomas

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