unsolvable
adjective, noun
unsolvable is spelled U-N-S-O-L-V-A-B-L-E. The wrong spelling people search most is unsolveable: about 10 Bing searches a month in the United States (September 2025 to August 2026), about 3 in 10 of all searches for the word. Unsolvable is an adjective meaning “Not solvable”.
How many letters and syllables are in unsolvable?
| Letters | 10: U-N-S-O-L-V-A-B-L-E |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | about once in every 5 million words; the 65,114th most frequent word form |
| Wrong spellings searched | 1; the most searched, unsolveable, about 10 Bing searches a month (all of them) |
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); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).
How do you spell unsolvable?
Unsolvable is spelled U-N-S-O-L-V-A-B-L-E. One wrong spelling is searched or written often enough to measure; together they are about 3 in 10 of the searches for unsolvable in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is unsolvable?
Unsolvable appears about once in every 5 million words in written English, the 65,114th 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 unsolvable?
- US
Unsolvable 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)-Flame,_not_lame-unsolvable.wav, Wikimedia Commons (author and licence on each file's page).
Forms of unsolvable
- unsolvables plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does unsolvable mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not solvable.
noun
- 1
A problem that cannot be solved.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Unsolvable in Spanish, French, German and Portuguese
In the sense not solvable:
| Language | Words |
|---|---|
| French | insoluble |
| Spanish | irresoluble |
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 unsolvable come from?
From un- + solvable. Piecewise doublet of insolvable and insoluble.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).