invalidate

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.

One doctor never examined her, while another barely spoke to her; either of these issues could invalidate competency declarations and expose medical misconduct, fraud and/or conspiracy.

From MarketWatch • Mar. 19, 2026

The courts may invalidate specious claims that certain imports threaten national security.

From The Wall Street Journal • Mar. 9, 2026

US District Judge Royce Lamberth endorsed Revolution Wind's request to invalidate the US Interior Department's move to suspend the project off the coast of Rhode Island.

From Barron's • Jan. 12, 2026

In 2022, however, the American Journal of Therapeutics, which had published the study, warned that suspicious data “appears to invalidate the findings” regarding ivermectin’s potential to decrease deaths.

From Salon • Dec. 15, 2025

In general, I felt as if I couldn’t win, that no amount of faith or hard work would push me past my detractors and their attempts to invalidate me.

From "Becoming" by Michelle Obama