undiagnosed

adjective

un·​di·​ag·​nosed ˌən-ˌdī-ig-ˈnōst How to pronounce undiagnosed (audio)
-əg-,
-zd
: 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
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.
Since many cases of gastrointestinal illness go undiagnosed, AI could help provide a more comprehensive picture of outbreak sources and trends. Daphne Ewing-Chow, Forbes, 18 Mar. 2025 Half of children who are undiagnosed and untreated for HIV die before their first birthday. Anna Maria Barry-Jester, ProPublica, 1 Mar. 2025 In 2019, Elizabeth, then 6, was hospitalized for a month after becoming gravely ill from undiagnosed and untreated diabetes. Hilary Whiteman, CNN, 26 Feb. 2025 Many go undiagnosed because there is only a handful of true experts. Chicago Tribune, 25 Feb. 2025 See All Example Sentences for undiagnosed

Word History

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of undiagnosed was in 1864

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Cite this Entry

“Undiagnosed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undiagnosed. Accessed 30 Mar. 2025.

Medical Definition

undiagnosed

adjective
un·​di·​ag·​nosed -ˈnōst How to pronounce undiagnosed (audio)
: not diagnosed : eluding diagnosis
undiagnosed disease
Last Updated: - Updated example sentences
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