un·​di·​ag·​nos·​able ˌən-ˌdī-ig-ˈnō-sə-bəl How to pronounce undiagnosable (audio)
: incapable of being diagnosed : not diagnosable
an undiagnosable illness/problem

Examples of undiagnosable in a Sentence

Recent Examples on the Web What Dr Meyer and his team found was a rare, ‘undiagnosable’ disease—one that could only be treated by a bone marrow transplant from umbilical cord blood. Ian Vorster, Discover Magazine, 11 June 2014 The older the former player, the less likely that diseases like Alzheimer’s, ALS or dementia can be attributed solely to football; CTE remains undiagnosable in the living. S.l. Price, SI.com, 9 May 2017 At age 15, Marsella had undiagnosable auto-immune issues. CBS News, 7 July 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undiagnosable.' 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

1926, in the meaning defined above

Time Traveler
The first known use of undiagnosable was in 1926

Dictionary Entries Near undiagnosable

Cite this Entry

“Undiagnosable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undiagnosable. Accessed 25 Feb. 2024.

Medical Definition


un·​di·​ag·​nos·​able -ˌdī-ig-ˈnō-sə-bəl How to pronounce undiagnosable (audio)
: not capable of being diagnosed
an undiagnosable complaint
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