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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.

See Examples For:

In Threads, he explains that he is dyslexic and it was undiagnosed throughout his school days.

From BBC Sep. 8, 2026

A phone call from the coroner's office changed all that: they were told Daniel had undiagnosed advanced oesophageal cancer, and that the main cause of death was an obstruction in his throat from some food.

From BBC Aug. 24, 2026

The obvious suspect is an undiagnosed injury, even if Skenes said at the All-Star break that he wasn’t hurt and that the dip in velocity didn’t bother him.

From The Wall Street Journal Aug. 14, 2026

Some estimates suggest that a significant share of patients remain undiagnosed or misdiagnosed for years, often cycling through providers before receiving a clear explanation for their symptoms.

From Salon May 16, 2026

Ivan Fitzgerald finally isolated the germ that had caused the Finchley girl's undiagnosed illness.

From Omnilingual by Kelly Freas

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