unbound
/ʌnˈbaʊnd/adjective, verb
unbound is spelled U-N-B-O-U-N-D: 7 letters and 2 syllables. It appears about once in every 1 million words in written English, the 34,912th most frequent word form (wordfreq, 2021 data). As an adjective, unbound means “Not obligated” (English Wiktionary, September 2026).
How many letters and syllables are in unbound?
| Letters | 7: U-N-B-O-U-N-D |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | about once in every 1 million words; the 34,912th 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 unbound?
Unbound appears about once in every 1 million words in written English, the 34,912th 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 unbound?
- /ʌnˈbaʊnd/
Unbound has 2 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)-Vealhurl-unbound.wav, Wikimedia Commons (author and licence on each file's page).
What does unbound mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not obligated.
Near-synonyms: unconstrained, unrestrained, unencumbered; unfettered, fetterless
- 2
Not tied up.
Near-synonyms: unfettered, fetterless, unrestrained, unchained, unshackled, shackleless, unmanacled, unhandcuffed
- 3
Without a binding.
an unbound book
- 4
Lying beyond the proton or neutron drip line; having a negative particle separation energy; capable of decaying by the spontaneous exothermic emission of one or more nucleons.
Helium-2 is unbound, as it is energetically favorable for it to split into two separate protons.
verb
- 1
simple past and past participle of unbind
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate unbound?
Wiktionary records one abbreviation of unbound: unbd..
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Unbound in Spanish, French, German and Portuguese
In the sense not bound or tied up:
| Language | Words |
|---|---|
| German | ungebunden |
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.