Which to use
“impassible” and “impossible” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #33,731
- “impassible” frequency rank
- #878
- “impossible” frequency rank
- 34609
- confusion score
Side-by-Side Comparison
| Feature | impassible | impossible |
|---|---|---|
| Definition | Qui n’est pas susceptible de souffrance. | Qui ne peut être ; qui ne se peut faire. |
Where the eye mixes impassible and impossible
Muted = shared; highlighted = the visual trap. They share 9 letters in sequence.
Look-alike desk: impassible vs impossible
A purely visual mix-up. impassible (\ɛ̃.pa.sibl\) and impossible (\ɛ̃.pɔ.sibl\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - a in “impassible” becomes o in “impossible”. Our composite confusion score for this pair is 34609, derived from the frequency rank of both members and their visual similarity.
impassible is recorded at frequency rank #33,731, classified as anadj, pronounced \ɛ̃.pa.sibl\. impossible is at rank #878, tagged as anadj, pronounced \ɛ̃.pɔ.sibl\.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 34609, this pair ranks #282,633 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of impassible vs impossible
Shared letters: beilmps. Private to "impassible": a. Private to "impossible": o.
"impassible" · 10 letters · shape VCCVCCVCCV · "impossible" · 10 letters · shape VCCVCCVCCV
Known mistypes of this pair
- impassible ← imapssible · immpassible · impasible · impasisble · impassbile · impassibble · impassibel · impassiblle
- impossible ← immpossible · imopssible · imposible · imposisble · impossbile · impossibble · impossibel · impossiblle
Frequently Asked Questions
Can "impassible" and "impossible" be used interchangeably?
Frequency check: "impassible" vs "impossible" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "impassible" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "impossible" - compare definitions side by side with the headword page. Word entry
- This pair ranks #282,633 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "impassible" and "impossible" also get mixed up with nearby pairs, the highest-scored neighbour is "impassible vs impossibles". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #282,633 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.