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.
Viral hepatitis is often undiagnosed and underreported. Chiara Eisner, NPR, 16 Apr. 2025 And yet, the World Health Organization estimates that up to 70% of PCOS cases go undiagnosed. Eva Epker, Forbes.com, 15 Apr. 2025 In other words, many children with ASD previously went undiagnosed. James M. Gaylor, Baltimore Sun, 7 Apr. 2025 As a result, the number of new TB cases reported in the region has dropped from about 650-850 per month to just 250 in February, meaning that hundreds are going undiagnosed and without care, Chamreun told CNN. Issy Ronald, CNN Money, 30 Mar. 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 22 Apr. 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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