undeniable
/ˌʌn.dɪˈnaɪ.(j)ə.bəɫ/adjective
undeniable is spelled U-N-D-E-N-I-A-B-L-E: 10 letters and 5 syllables. It appears 2.2 times per million words in written English, the 18,537th most frequent word form (wordfreq, 2021 data). As an adjective, undeniable means “Irrefutable, or impossible to deny” (English Wiktionary, September 2026).
How many letters and syllables are in undeniable?
| Letters | 10: U-N-D-E-N-I-A-B-L-E |
|---|---|
| Syllables | 5 (from its American pronunciation) |
| In writing | 2.2 times per million words; the 18,537th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
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); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is undeniable?
Undeniable appears 2.2 times per million words in written English, the 18,537th 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 undeniable?
- US /ˌʌn.dɪˈnaɪ.(j)ə.bəɫ/
- US /ˌʌn.dɪˈnaɪ.ə.bl̩/
Undeniable has 5 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: En-us-undeniable.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with undeniable?
3 words on PlainSpell end in the same sounds as undeniable from its last stressed vowel (/aɪəbəl/):
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
What does undeniable mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Irrefutable, or impossible to deny.
Some believe that there is undeniable evidence of UFOs.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Undeniable in Spanish, French, German and Portuguese
In the sense irrefutable, or impossible to deny:
| Language | Words |
|---|---|
| French | indéniable, incontestable |
| German | unbestreitbar, unleugbar |
| Portuguese | inegável |
| Spanish | innegable, impepinable |
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 undeniable come from?
From un- + deny + -able, compare deniable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).