unassailable
/ˌʌnəˈseɪləbl̩/
"unassailable" is a 12-letter English headword indexed on PlainSpell.
The verdict
“unassailable” is uncommon English (frequency #50,868 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.
- #50,868
- frequency rank, English
- 1,433
- “U” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Secure against attack; impregnable.
Corpus desk
Index EN-unassailable · unassailable · English
unassailable · rank #50,868 · 0 variants · 0 confusables
- FREQ-RARE #50,868
- LEN-MEGA 12 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 1,433
- PHOTO-FINISH unanimity
Nearest frequency peer: unanimity (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “unassailable”
Sparse band: bars invert rank so rarer forms read shorter
- unabashedly
unabashedly
49,135 corpus weight
- unanimity
unanimity
49,134 corpus weight
- unassailable
unassailable
49,133 corpus weight
- unavailabil…
unavailability
49,132 corpus weight
- unbounded
unbounded
49,131 corpus weight
- unceremonio…
unceremoniously
49,130 corpus weight
What this shows Long-tail view: where “unassailable” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | unassailable |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˌʌnəˈseɪləbl̩/ |
| Letters | 12 |
| Frequency rank | #50,868 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “unassailable” in English
Rare enough to double-check
unassailable is uncommon English at frequency #50,868 among 1,433 “U” headwords, classed as anadjective, transcribed /ˌʌnəˈseɪləbl̩/. Rarity is why readers land here mid-draft. 2 senses are on record.
No misspelling variants are generated for unassailable in our index, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From un- + assailable. The correct English form is unassailable, spelled U-N-A-S-S-A-I-L-A-B-L-E.
Definition
- 1Secure against attack; impregnable.
- 2Undeniable, incontestable or incontrovertible.
Recorded use
Wiktionary examplesThese source excerpts show how unassailable appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Yet in the number, I do know but One That vnaſſayleable holds on his Ranke, Vnfhak’d of Motion : and that I am he, Let me a little ſhew it, euen in this : That I was conſtant Cymber ſhould be baniſh’d, And conſtant do remaine to keepe him ſo.
His recourse to written documents to make his discourse unassailable has created a virtually unalterable situation even as he is on the verge of being forced to “see through” Tartuffe.
Etymology
From un- + assailable.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "unassailable", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 12 letters (nearest by frequency rank).