unproven
adjective
unproven is spelled U-N-P-R-O-V-E-N: 8 letters and 3 syllables. It appears about once in every 1 million words in written English, the 30,789th most frequent word form (wordfreq, 2021 data). As an adjective, unproven means “Not proved” (English Wiktionary, September 2026).
How many letters and syllables are in unproven?
| Letters | 8: U-N-P-R-O-V-E-N |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | about once in every 1 million words; the 30,789th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is unproven?
Unproven appears about once in every 1 million words in written English, the 30,789th 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).
How do you pronounce unproven?
- US
Unproven has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-unproven.wav, Wikimedia Commons (author and licence on each file's page).
What does unproven mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not proved.
Near-synonyms: unconfirmed; see also Thesaurus:baseless
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Unproven in Spanish, French, German and Portuguese
In the sense not proved:
| Language | Words |
|---|---|
| German | unbewiesen |
| Portuguese | improvado |
| Spanish | no comprobado |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does unproven come from?
From un- + proven.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).