unfasten
/ʌnˈfɑːs(ə)n/verb
unfasten is spelled U-N-F-A-S-T-E-N: 8 letters. It appears about once in every 21 million words in written English, the 138,319th most frequent word form (wordfreq, 2021 data). As a verb, unfasten means “To detach from any connecting agency or link; to disconnect” (English Wiktionary, September 2026).
How many letters and syllables are in unfasten?
| Letters | 8: U-N-F-A-S-T-E-N |
|---|---|
| In writing | about once in every 21 million words; the 138,319th 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 unfasten?
Unfasten appears about once in every 21 million words in written English, the 138,319th 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 unfasten?
- US /ʌnˈfɑːs(ə)n/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-unfasten.wav, Wikimedia Commons (author and licence on each file's page).
Forms of unfasten
- unfastens present, singular, he/she/it
- unfastening participle, present
- unfastened participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does unfasten mean?
The meanings the English Wiktionary records, quoted as written there (source below).
verb
- 1
To detach from any connecting agency or link; to disconnect.
- 2
To come unloosed or untied.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Unfasten in Spanish, French, German and Portuguese
In the sense to detach from any connecting agency or link – see also disconnect:
| Language | Words |
|---|---|
| French | défaire |
| German | abschnallen, lösen, losmachen |
| Spanish | desabrochar |
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 unfasten come from?
From un- + fasten.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).