insuperable
/ɪnˈsup(ə)ɹəb(ə)l/
"insuperable" is a 11-letter English headword indexed on PlainSpell.
The verdict
“insuperable” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 11
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Impossible to achieve or overcome or be negotiated.
Corpus desk
Index EN-insuperable · insuperable · English
insuperable · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "I" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | insuperable |
| Language | English |
| Part of speech | Adjective |
| IPA | /ɪnˈsup(ə)ɹəb(ə)l/ |
| Letters | 11 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “insuperable” in English
Rare enough to double-check
insuperable is uncommon English outside the top frequency list, classed as anadjective, transcribed /ɪnˈsup(ə)ɹəb(ə)l/. Rarity is why readers land here mid-draft. 2 senses are on record.
insuperable doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From Latin insuperabilis. The correct English form is insuperable, spelled I-N-S-U-P-E-R-A-B-L-E.
Definition
- 1Impossible to achieve or overcome or be negotiated.
- 2Overwhelming or insurmountable.
Recorded use
Wiktionary examplesThese source excerpts show how insuperable appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Regular services for passengers and goods were maintained for almost 50 years, but the speed limit of 16 m.p.h., imposed by the Board of Trade, proved an insuperable handicap after the introduction of competitive motor bus services.
While Indian English may not have a uniform standard form throughout the country, this in itself is not an insuperable obstacle for lexicography.
Etymology
From Latin insuperabilis.
Synonyms
Antonyms
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). See the methodology for how each field is sourced and updated.