un·​di·​ag·​nosed | \ ˌən-ˌdī-ig-ˈnōst How to pronounce undiagnosed (audio) , -əg-, -zd \

Definition of undiagnosed

: not diagnosed : not identified through diagnosis an undiagnosed illness … the symptoms of the syndrome may be subtle and thus may remain undiagnosed.— Dwight R. Robinson a condition that often goes undiagnosed

Examples of undiagnosed in a Sentence

Recent Examples on the Web The true death toll from COVID-19 is believed to be higher than official statistics show because of cases that went undiagnosed or were overlooked or concealed. Sarah Volpenhein, Milwaukee Journal Sentinel, 28 Dec. 2021 The total number of cases could be much higher than reported, researchers say, because many mild cases are probably going undiagnosed. Felicia Schwartz, WSJ, 26 July 2021 Another resident, Zhu Wei, said some early cases probably went undiagnosed. Eva Dou , Lyric Li, Star Tribune, 17 July 2021 Another resident, Zhu Wei, said some early cases probably went undiagnosed. Washington Post, 23 June 2021 Disorders also often go undiagnosed in men or non-white people due to bias of health-care providers who think these disorders arise only in white women. Kendall Powell, Smithsonian Magazine, 17 Dec. 2021 About 6 percent of adults in the U.S. will develop PTSD at some point in their lives, according to the National Center for PTSD—though that number is likely higher because many people go undiagnosed. Ayana Byrd, Health.com, 16 Dec. 2021 About 6 million dogs are diagnosed with cancer each year in the nation, and many more likely go undiagnosed. San Diego Union-Tribune, 9 Dec. 2021 One reason that persistent pain can go undiagnosed for so long is that health care workers are undereducated about diagnosing and treating pain. Kate M. Nicholson, STAT, 5 Dec. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'undiagnosed.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of undiagnosed

1864, in the meaning defined above

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The first known use of undiagnosed was in 1864

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Last Updated

16 Jan 2022

Cite this Entry

“Undiagnosed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undiagnosed. Accessed 26 Jan. 2022.

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More Definitions for undiagnosed


un·​di·​ag·​nosed | \ -ˈnōst How to pronounce undiagnosed (audio) \

Medical Definition of undiagnosed

: not diagnosed : eluding diagnosis undiagnosed disease


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