unpossible
/ʌnˈpɒsɪbəl/
"unpossible" is a 10-letter English headword indexed on PlainSpell.
The verdict
“unpossible” is outside the top-ranked English vocabulary, used as an adjective - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Impossible.
| Property | Value |
|---|---|
| Headword | unpossible |
| Language | English |
| Part of speech | Adjective |
| IPA | /ʌnˈpɒsɪbəl/ |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “unpossible” sits in English frequency
Spelling & Dictionary Insight
The English entry for unpossible is 10 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ʌnˈpɒsɪbəl/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Impossible.".
No misspelling variants are generated for unpossible in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From Middle English unpossible, equivalent to un- (“not”) + possible. The correct English form is unpossible, spelled U-N-P-O-S-S-I-B-L-E.
Definition
- 1Impossible.
Etymology
From Middle English unpossible, equivalent to un- (“not”) + possible.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “unpossible”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is U-N-P-O-S-S-I-B-L-E - every other letter order is a misspelling in standard orthography.
- Say it as /ʌnˈpɒsɪbəl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.