demonstrably
/diˈmɑnstrəbli/adverb
demonstrably is spelled D-E-M-O-N-S-T-R-A-B-L-Y: 12 letters and 4 syllables. It appears about once in every 2 million words in written English, the 37,943rd most frequent word form (wordfreq, 2021 data). As an adverb, demonstrably means “In such a manner that is capable of being demonstrated, shown, or proved (without doubt)” (English Wiktionary, September 2026).
How many letters and syllables are in demonstrably?
| Letters | 12: D-E-M-O-N-S-T-R-A-B-L-Y |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | about once in every 2 million words; the 37,943rd 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 demonstrably?
Demonstrably appears about once in every 2 million words in written English, the 37,943rd 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 demonstrably?
- UK /dɪˈmɒnstrəbliː/
- US /diˈmɑnstrəbli/
Demonstrably has 4 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)-Eleanorrrrrrrrrr-demonstrably.wav, Wikimedia Commons (author and licence on each file's page).
Forms of demonstrably
- more demonstrably comparative
- most demonstrably superlative
- demonstratably
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does demonstrably mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adverb
- 1
In such a manner that is capable of being demonstrated, shown, or proved (without doubt).
The country has become demonstrably less safe under his leadership.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Demonstrably in Spanish, French, German and Portuguese
In the sense in such a manner as to be capable of being demonstrated:
| Language | Words |
|---|---|
| French | démontrablement |
| Portuguese | demonstravelmente |
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 demonstrably come from?
From demonstrable + -ly. First attested in the early 17th century.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).