unchallengeable
adjective
unchallengeable is spelled U-N-C-H-A-L-L-E-N-G-E-A-B-L-E: 15 letters. It appears about once in every 30 million words in written English, the 167,786th most frequent word form (wordfreq, 2021 data). As an adjective, unchallengeable means “Not open to challenge; indisputable” (English Wiktionary, September 2026).
How many letters and syllables are in unchallengeable?
| Letters | 15: U-N-C-H-A-L-L-E-N-G-E-A-B-L-E |
|---|---|
| In writing | about once in every 30 million words; the 167,786th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is unchallengeable?
Unchallengeable appears about once in every 30 million words in written English, the 167,786th 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).
Forms of unchallengeable
- more unchallengeable comparative
- most unchallengeable superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does unchallengeable mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not open to challenge; indisputable
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does unchallengeable come from?
From un- + challengeable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).