insurmountable

adj

"insurmountable" is a 14-letter English headword indexed on PlainSpell.

The verdict

“insurmountable” has 22 generated spelling variants in the English index at frequency #27,886. The variants make it a useful spelling check.

#27,886
frequency rank, English
2,140
“I” headwords
22
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Incapable of being passed over, surmounted, or overcome; insuperable

Corpus desk

Index EN-insurmountable · insurmountable · English

insurmountable · rank #27,886 · 22 variants · 0 confusables

  • FREQ-MID #27,886
  • LEN-MEGA 14 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 22 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH insular

Nearest frequency peer: insular (-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.

Rank peers near misspelling magnet “insurmountable”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “insurmountable” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for insurmountable
PropertyValue
Headwordinsurmountable
LanguageEnglish
Part of speechAdjective
Letters14
Frequency rank#27,886
Misspellings tracked22
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “insurmountable”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).insurmountablelands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “insular” (#27,885), “innumerable” (#27,884), “invariant” (#27,888). Among 2,140 “I” headwords, “insurmountable” is #27,886. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 22 spelling variants around insurmountable, anadjective. Corpus frequency is #27,886 among 2,140 “I” headwords. Dominant gloss: "Incapable of being passed over, surmounted, or overcome; insuperable".

Our generated misspelling index lists 22 likely wrong-spelling variants for insurmountable, with forms such as "innsurmountable", "insrumountable", and "inssurmountable". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From in- + surmountable. The correct English form is insurmountable, spelled I-N-S-U-R-M-O-U-N-T-A-B-L-E.

Definition

  1. 1
    Incapable of being passed over, surmounted, or overcome; insuperable

Recorded use

Wiktionary examples

These source excerpts show how insurmountable appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Getting everybody to agree proved to be an insurmountable difficulty.
  2. Overcoming Japan’s demographic crisis has proved insurmountable for occupants of the Kantei – the prime minister’s office – long before Kishida moved in last autumn.

Etymology

From in- + surmountable.

This word in other languages

Common misspellings

Also misspelled as:

  • innsurmountable
  • insrumountable
  • inssurmountable
  • insumrountable
  • insurmmountable
  • insurmonutable
  • insurmounatble
  • insurmounntable
  • insurmountabble
  • insurmountabel
  • insurmountablle
  • insurmountalbe
  • insurmountbale
  • insurmountible
  • insurmounttable
  • insurmoutnable
  • insurmuontable
  • insuromuntable
  • insurrmountable
  • inusrmountable
  • isnurmountable
  • nisurmountable

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of insurmountable - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

innsurmountable1insrumountable2inssurmountable1insumrountable2insurmmountable1insurmonutable2insurmounatble2insurmounntable1
Edit distance from "insurmountable"

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

How do you spell "insurmountable"?
"insurmountable" is spelled I-N-S-U-R-M-O-U-N-T-A-B-L-E.
What does "insurmountable" mean?
As an adjective, "insurmountable" means: Incapable of being passed over, surmounted, or overcome; insuperable
What are common misspellings of "insurmountable"?
Common misspellings include "innsurmountable", "insrumountable", "inssurmountable", "insumrountable", "insurmmountable". The correct spelling is "insurmountable".
What is the origin of the word "insurmountable"?
From in- + surmountable. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "insurmountable", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 14 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (22 here; floor ≥5).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list