unsustainability
noun
unsustainability is spelled U-N-S-U-S-T-A-I-N-A-B-I-L-I-T-Y: 16 letters. It appears about once in every 30 million words in written English, the 165,739th most frequent word form (wordfreq, 2021 data). As a noun, unsustainability means “The state or condition of being unsustainable” (English Wiktionary, September 2026). The plural of unsustainability is unsustainabilities.
How many letters and syllables are in unsustainability?
| Letters | 16: U-N-S-U-S-T-A-I-N-A-B-I-L-I-T-Y |
|---|---|
| In writing | about once in every 30 million words; the 165,739th 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 unsustainability?
Unsustainability appears about once in every 30 million words in written English, the 165,739th 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 unsustainability
- unsustainabilities plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does unsustainability mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The state or condition of being unsustainable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Unsustainability in Spanish, French, German and Portuguese
In the sense state or condition of being unsustainable:
| Language | Words |
|---|---|
| French | insoutenabilité |
| Spanish | insostenibilidad |
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.