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Synonyms

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.


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.

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

That uncertainty has cast doubt on the future strength of the yen on Wall Street.

From MarketWatch • May 2, 2026

She also cast doubt on the reliability of Beth and Laura's commercial DNA test.

From BBC • Mar. 31, 2026

Recent studies have cast doubt on this picture.

From "1491" by Charles C. Mann

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