Dictionary.com
Thesaurus.com
Showing results for undiagnosed. Search instead for underdiagnoses.

undiagnosed

British  
/ ˌʌndaɪəɡˈnəʊzd /

adjective

  1. (of a medical condition, a problem, etc) not having been identified

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As a kid with learning differences, whose undiagnosed dyslexia put him behind in school.

From Los Angeles Times • Mar. 4, 2026

In reality, at 57, I had undiagnosed Alzheimer’s disease.

From The Wall Street Journal • Feb. 3, 2026

Controllable endemic diseases like high blood pressure will be undiagnosed and ignored until paralysis sets in.

From MarketWatch • Jan. 26, 2026

On the same BBC Radio Wales programme, Yorath was asked how he had coped with the death of his son Daniel, who had undiagnosed hypertrophic cardiomyopathy, and said: "I didn't, really."

From BBC • Jan. 8, 2026

Jason had an undiagnosed example of that when he got only part of his man back from the Valley of Kings.

From Zero Data by Saphro, Charles