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.
Many go undiagnosed because there is only a handful of true experts. — Chicago Tribune, 25 Feb. 2025 As Ghostface ages, he’s been taking care of his diabetes, which went undiagnosed for years and led to some serious health struggles. — Kyle Eustice, SPIN, 24 Feb. 2025 Going undiagnosed for so long can cause decades of confusion and difficulty for many people with ASD who don’t have this diagnosis as context for their behavioral tendencies and social interactions. — Cassie Shortsleeve, SELF, 19 Feb. 2025 Commonly known as fatty liver disease, the illness often goes undiagnosed until a patient has progressed to permanent scarring and damage to the liver, called cirrhosis. — Nina Agrawal, New York Times, 11 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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undiagnosed
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Cite this Entry

“Undiagnosed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undiagnosed. Accessed 10 Mar. 2025.

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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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