invalidate
verb (used with object)
to render invalid; discredit.
invalidated
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past participleof invalidate.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
-
past tense formof invalidate.past tense
Used to describe completed actions or previous habitual actions.
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.
It is claimed these invalidated his advice and "infected" the secretary of state's decision and Sir Chris showed "scatter gun decision-making" and had "misdirected himself".
From BBC ● Oct. 19, 2026
In 2018 the Supreme Court invalidated the federal ban on sports betting.
From The Wall Street Journal ● Aug. 13, 2026
However, in each case, subtle errors were found that invalidated the arguments.
From Science Daily ● Aug. 6, 2026
But in 2024, a Los Angeles County Superior Court judge invalidated the law, ruling that the state, not the city, has jurisdiction over petroleum production.
From Los Angeles Times ● Jun. 23, 2026
The ruling invalidated Walter’s conviction and death sentence.
From "Just Mercy" by Bryan Stevenson
