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overestimation

noun

over·​es·​ti·​ma·​tion ˌō-vər-ˌe-stə-ˈmā-shən How to pronounce overestimation (audio)
plural overestimations
: the act or an instance of estimating someone or something too highly
The overestimation of the value of an advance in medicine can lead to more trouble than anyone can foresee …Lewis Thomas
… their wild overestimation of the reader's attention span …Lev Grossman
… potential problems of underestimation or overestimation of disease rates …Tonny J. Oyana et al.

Examples of overestimation in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There's also the question of Utility Factor (UF) overestimation: UF refers to the proportion of total driving that is powered by electricity. New Atlas, 17 Oct. 2025 The study found that the incorrect, older models led to a significant bias in criticality calculations, causing an artificial overestimation of the reactor’s effective neutron multiplication factor (keff). Aman Tripathi, Interesting Engineering, 1 Oct. 2025 Additionally, cognitive biases, such as the desire for immediate gratification and overestimation of the value of trendy or popular items, play a significant role. Mark Travers, Forbes.com, 4 Sep. 2025 Most tech companies have been reluctant to disclose much proprietary information at the most granular, energy-per-query level, which can lead to gross overestimations when multiplied across billions of queries. Tim McDonnell, semafor.com, 21 Aug. 2025 See All Example Sentences for overestimation

Word History

First Known Use

1808, in the meaning defined above

Time Traveler
The first known use of overestimation was in 1808

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Cite this Entry

“Overestimation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overestimation. Accessed 2 Dec. 2025.

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