in the mistaken/erroneous belief that
idiom
: being mistaken in thinking that
Many people arrived early in the mistaken/erroneous belief that free tickets would be available.
Examples of in the mistaken/erroneous belief that in a Sentence
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At Trenton State Hospital between 1907 and 1930, the director Henry Cotton performed thousands of invasive surgeries in the mistaken belief that removing patients’ teeth or organs would cure their mental illnesses.
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Amanda Foreman, WSJ, 12 Jan. 2023
Two years earlier the Nixon administration had intentionally devalued the dollar in the mistaken belief that a cheaper dollar would spur growth and employment while reducing the U.S. trade deficit.
—Arthur Laffer and Stephen Moore, WSJ, 1 May 2022
Far too many people were jumping on the bandwagon in the mistaken belief that anything that’s been going up in value will continue to do so.
—Phillip Molnar, San Diego Union-Tribune, 14 Jan. 2022
The chant had spread across the country in the mistaken belief that such a short performance would help heal the wounds of many centuries.
—Blair McClendon, The New Republic, 24 May 2021
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Amanda Foreman, WSJ, 12 Jan. 2023
Two years earlier the Nixon administration had intentionally devalued the dollar in the mistaken belief that a cheaper dollar would spur growth and employment while reducing the U.S. trade deficit.
—Arthur Laffer and Stephen Moore, WSJ, 1 May 2022
Far too many people were jumping on the bandwagon in the mistaken belief that anything that’s been going up in value will continue to do so.
—Phillip Molnar, San Diego Union-Tribune, 14 Jan. 2022
The chant had spread across the country in the mistaken belief that such a short performance would help heal the wounds of many centuries.
—Blair McClendon, The New Republic, 24 May 2021
Cite this Entry
“In the mistaken/erroneous belief that.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20the%20mistaken%2Ferroneous%20belief%20that. Accessed 31 Oct. 2025.
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