undiagnosed

What it means

1. not comparableThat 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

   2 more examples

   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

   The chronic condition affects around 8% to 13% of women and girls of reproductive age worldwide, according to the World Health Organization, but as many as 70% could be experiencing PCOS while undiagnosed.

   2024 January 31, Kristen Rogers, “Condition affecting at least 1 in 10 women linked with cognitive decline, study finds”, in CNN

In a sentence

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

Where it comes from

1. Proto-Indo-European*né
2. Proto-Indo-European*n̥-
3. Proto-Germanic*un-
4. Proto-West Germanic*un-
5. Old Englishun-
6. Middle Englishun-
7. Englishun-
8. Englishdiagnosed
9. Englishundiagnosed

From un- + diagnosed.