Which to use
“rapide” is an adjective and “rapidité” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,275
- “rapide” frequency rank
- #9,065
- “rapidité” frequency rank
- 10340
- confusion score
Side-by-Side Comparison
| Feature | rapide | rapidité |
|---|---|---|
| Definition | Qui se meut avec vitesse. | Célérité, grande vitesse. |
Where the eye mixes rapide and rapidité
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. rapide runs 6 letters (CVCVCV) against rapidité's 8 (CVCVCVCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: rapide vs rapidité
These two trip readers on the page rather than in the ear: rapide is \ʁa.pid\ while rapidité is \ʁa.pi.di.te\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 10340, derived from the frequency rank of both members and their visual similarity.
rapide is recorded at frequency rank #1,275, classified as anadj, pronounced \ʁa.pid\. rapidité is at rank #9,065, tagged as anoun, pronounced \ʁa.pi.di.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 10340, this pair ranks #413,352 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of rapide vs rapidité
Shared letters: adipr. Private to "rapide": e. Private to "rapidité": té.
"rapide" · 6 letters · shape CVCVCV · "rapidité" · 8 letters · shape CVCVCVCV
Known mistypes of this pair
- rapide ← arpide · raipde · rapdie · rapidde · rapied · rappide · rpaide · rrapide
Frequently Asked Questions
Is swapping "rapide" for "rapidité" ever safe?
In ordinary French text, does "rapide" or "rapidité" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "rapide" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "rapidité" - compare definitions side by side with the headword page. Word entry
- This pair ranks #413,352 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rapide" and "rapidité" also get mixed up with nearby pairs, the highest-scored neighbour is "radiée vs rapide". 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 #413,352 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.