undecidability
noun
undecidability is spelled U-N-D-E-C-I-D-A-B-I-L-I-T-Y: 14 letters. It appears about once in every 39 million words in written English, the 191,932nd most frequent word form (wordfreq, 2021 data). As a noun, undecidability means “the state of being undecidable” (English Wiktionary, September 2026). The plural of undecidability is undecidabilities.
How many letters and syllables are in undecidability?
| Letters | 14: U-N-D-E-C-I-D-A-B-I-L-I-T-Y |
|---|---|
| In writing | about once in every 39 million words; the 191,932nd 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 undecidability?
Undecidability appears about once in every 39 million words in written English, the 191,932nd 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 undecidability
- undecidabilities plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does undecidability mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
the state of being undecidable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Undecidability in Spanish, French, German and Portuguese
In the sense the state of being undecidable:
| Language | Words |
|---|---|
| German | Unentscheidbarkeit |
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 undecidability come from?
From un- + decidability.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).