cast doubt on

Idioms  

1. Cause something or someone to be questioned. For example, The prosecutor cast doubt on the wife's alibi. This idiom uses cast in the sense of “throw,” a usage dating from the early 1200s.

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Example Sentences

See Examples For:

cast doubt on

He appeared to immediately cast doubt on whether a meeting or deal could ever take place.

From BBC ● Jun. 5, 2026

But Tehran has previously cast doubt on Trump's assertions and the parties appeared far apart on their key priorities.

From Barron's ● May 31, 2026

Daniel Remler, who led AI policy at the State Department during the Biden administration and took part in the Geneva talks, cast doubt on Chinese claims of disinterest in AGI and ignorance of its risks.

From Los Angeles Times ● May 11, 2026

The renewed military actions in the Middle East cast doubt on the fragile U.S.-Iran cease-fire, which could put upward pressure on the greenback, Kong adds.

From The Wall Street Journal ● May 5, 2026

Although a few historians have recently cast doubt on some of the details of Olaudah Equiano’s life story, the majority of his account has been verified.

From "In the Shadow of Liberty" by Kenneth C. Davis

Related Words

• accuse
• arraign
• criticize
• discredit
• indict
• reprimand