un·​di·​ag·​nosed ˌən-ˌdī-ig-ˈnōst How to pronounce undiagnosed (audio)
: 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 One newborn was flagged as likely to have two previously undiagnosed conditions. Mark Johnson, Washington Post, 17 June 2024 Countries in Africa need leaders to have the courage and determination to invest in health care systems, invest in finding individuals with undiagnosed viral hepatitis, and invest in treating everyone with the disease. Danjuma Adda, STAT, 16 June 2024 Those symptoms went undiagnosed for two months, and Rizzo largely hasn’t been the same player since. Gary Phillips, New York Daily News, 17 June 2024 After managing undiagnosed stiff-person syndrome symptoms for 17 years, Céline Dion is looking back at her health journey through a lens of gratitude. Melody Chiu, Peoplemag, 12 June 2024 See all Example Sentences for undiagnosed 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undiagnosed.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of undiagnosed was in 1864

Dictionary Entries Near undiagnosed

Cite this Entry

“Undiagnosed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undiagnosed. Accessed 13 Jul. 2024.

Medical Definition


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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