Which to use
“faisabilité” and “fiabilité” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #19,540
- “faisabilité” frequency rank
- #11,583
- “fiabilité” frequency rank
- 31123
- confusion score
Side-by-Side Comparison
| Feature | faisabilité | fiabilité |
|---|---|---|
| Definition | Possibilité de faire quelque chose en particulier de réaliser un projet technique. | Caractère de ce qui est fiable. |
Where the eye mixes faisabilité and fiabilité
Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. faisabilité runs 11 letters (CVVCVCVCVCV) against fiabilité's 9 (CVVCVCVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between faisabilité and fiabilité
A purely visual mix-up. faisabilité (\fə.za.bi.li.te\) and fiabilité (\fja.bi.li.te\) 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 2 letter(s) in length. Our composite confusion score for this pair is 31123, derived from the frequency rank of both members and their visual similarity.
faisabilité is recorded at frequency rank #19,540, classified as anoun, pronounced \fə.za.bi.li.te\. fiabilité is at rank #11,583, tagged as anoun, pronounced \fja.bi.li.te\.
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 31123, this pair ranks #305,822 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of faisabilité vs fiabilité
Shared letters: abfilté. Private to "faisabilité": s. Private to "fiabilité": -.
"faisabilité" · 11 letters · shape CVVCVCVCVCV · "fiabilité" · 9 letters · shape CVVCVCVCV
Frequently Asked Questions
Can "faisabilité" and "fiabilité" be used interchangeably?
In ordinary French text, does "faisabilité" or "fiabilité" show up more?
What to do next
Eye-level mix-up between "faisabilité" and "fiabilité" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "faisabilité" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fiabilité" - compare definitions side by side with the headword page. Word entry
- This pair ranks #305,822 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "faisabilité" and "fiabilité" also get mixed up with nearby pairs, the highest-scored neighbour is "fiabilité vs fragilité". Nearby pair
Confusion rank #305,822 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.