cast/throw doubt on

idiom

Definition of cast/throw doubt on

: to cause people to question or lose confidence in (something) These mistakes cast/throw doubt on her ability.

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“Cast/throw doubt on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cast%2Fthrow%20doubt%20on. Accessed 25 Sep. 2020.

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