Word.ws English Dictionary

undiagnosed

/ˌʌnˌdaɪəɡˈnəʊzd/

undiagnosed adjective: that had not been diagnosed. Also the simple past and past participle of undiagnose.

Adjective

undiagnosed (not comparable)

  1. That had not been diagnosed.
    • After the accident, a sleep study identified that the GBRf driver had previously undiagnosed severe Obstructive Sleep Apnoea.2023 August 23, “Network News: RAIB cites driver fatigue as factor in 28mph collision”, in RAIL, number 990, page 12
    • But what if you have an odd or quirky symptom besides snoring? You and your loved ones may have no idea that you are in danger, and the condition could go undiagnosed for years.2023 November 27, Sandee LaMotte, “Five weird signs of sleep apnea”, in CNN

Also used as

undiagnosed is also the simple past and past participle of undiagnose.

Origin of undiagnosed

From un- + diagnosed.

See the etymology of the corresponding lemma form.

Questions about undiagnosed

What does undiagnosed mean?
Undiagnosed means that had not been diagnosed.
What part of speech is undiagnosed?
Undiagnosed is an adjective.
How do you pronounce undiagnosed?
Undiagnosed is pronounced /ˌʌnˌdaɪəɡˈnəʊzd/.

Words near undiagnosed in the dictionary

  1. undiademming
  2. undiadems
  3. undiagnosable
  4. undiagnosably
  5. undiagnose
  6. undiagnosed
  7. undiagnoses
  8. undiagnosing
  9. undiagnostic
  10. undiagonalizable
  11. undiagonalized

Source and license

Adapted from Wiktionary: undiagnosed (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-undiagnosed.wav.

Cite this entry: “undiagnosed.” Word.ws, https://word.ws/undiagnosed. Based on Wiktionary, CC BY-SA 4.0.