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.
However, in each case, subtle errors were found that invalidated the arguments.
From Science Daily ● Aug. 6, 2026
“We have found no actions that require reconsideration or that are invalidated as a result of these developments.”
From Los Angeles Times ● May 11, 2026
The state Supreme Court invalidated a local referendum in Arlington in the 1950s after ruling voters had approved an unconstitutional measure.
From Barron's ● May 8, 2026
Importers can start filing claims Monday for tariffs invalidated by the Supreme Court.
From The Wall Street Journal ● Apr. 21, 2026
Supreme Court finally invalidated them in Lawrence v.
From "Drama High" by Michael Sokolove
