underdiagnosed
adjective
underdiagnosed is an adjective meaning “diagnosed less frequently than its occurrence” (English Wiktionary, September 2026). It is spelled U-N-D-E-R-D-I-A-G-N-O-S-E-D, and it appears about once in every 32 million words in written English (wordfreq, 2021 data).
What does underdiagnosed mean?
adjective
- 1
diagnosed less frequently than its occurrence.
Mood disorders, such as anxiety disorders and major depression, are often described as underdiagnosed and undertreated, in part because people with the disorders often do not seek treatment.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce underdiagnosed?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-underdiagnosed.wav, Wikimedia Commons (author and licence on each file's page).
Forms of underdiagnosed
- more underdiagnosed comparative
- most underdiagnosed superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is underdiagnosed?
Underdiagnosed appears about once in every 32 million words in written English, the 173,967th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Where does underdiagnosed come from?
From under- + diagnosed.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).