cast doubt on

idiom

: to make (something) seem less likely
The incident cast doubt on her honesty.

Examples of cast doubt on in a Sentence

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Johnson has regularly cast doubt on the usefulness of vaccines, telling reporters earlier this year that many childhood illnesses, such as the measles, can be eradicated through better hygiene and sanitation instead. Phillip M. Bailey, USA Today, 13 Dec. 2025 Buzbee also looked to cast doubt on the validity of the suicide note found on Aguilera’s phone by investigators. Julia Bonavita, FOXNews.com, 9 Dec. 2025 Nevison’s presentation sought to cast doubt on the importance of the hepatitis B vaccine and on recent modeling evidence that indicated doing away with the birth dose would increase the number of preventable hepatitis B cases and deaths in kids. Jamie Gumbrecht, CNN Money, 5 Dec. 2025 The modern federal income tax was created with the ratification of the 16th Amendment in 1913 but experts have cast doubt on it being upended any time soon. Brendan Cole, MSNBC Newsweek, 4 Dec. 2025 See All Example Sentences for cast doubt on

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“Cast doubt on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cast%20doubt%20on. Accessed 20 Dec. 2025.

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