sédentairevssédimentaireWhich spelling fits?

Which to use

“sédentaire” and “sédimentaire” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#31,759
“sédentaire” frequency rank
#44,760
“sédimentaire” frequency rank
76519
confusion score

Side-by-Side Comparison

Feature sédentaire sédimentaire
Definition Qui demeure ordinairement assis. Qui a le caractère d’un sédiment ; qui appartient à un sédiment.

Where the eye mixes sédentaire and sédimentaire

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. sédentaire runs 10 letters (CVCVCCVVCV) against sédimentaire's 12 (CVCVCVCCVVCV) - the length gap alone is often enough to separate them once you know to check it.

10 ch
sédentaire
12 ch
sédimentaire

Visual trap between sédentaire and sédimentaire

A purely visual mix-up. sédentaire (\se.dɑ̃.tɛʁ\) and sédimentaire (\se.di.mɑ̃.tɛʁ\) 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 76519, derived from the frequency rank of both members and their visual similarity.

sédentaire is recorded at frequency rank #31,759, classified as anadj, pronounced \se.dɑ̃.tɛʁ\. sédimentaire is at rank #44,760, tagged as anadj, pronounced \se.di.mɑ̃.tɛʁ\.

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 76519, this pair ranks #30,905 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of sédentaire vs sédimentaire

Shared letters: adeinrsté. Private to "sédentaire": -. Private to "sédimentaire": m.

"sédentaire" · 10 letters · shape CVCVCCVVCV  ·  "sédimentaire" · 12 letters · shape CVCVCVCCVVCV

Frequently Asked Questions

Is swapping "sédentaire" for "sédimentaire" ever safe?
No. They are said differently (\se.dɑ̃.tɛʁ\ versus \se.di.mɑ̃.tɛʁ\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "sédentaire" or "sédimentaire"?
"sédentaire" is the more common of the two: it sits at frequency rank #31,759 in our French list, against #44,760 for "sédimentaire". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "sédentaire" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sédimentaire" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,905 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sédentaire" and "sédimentaire" also get mixed up with nearby pairs, the highest-scored neighbour is "sédimentaire vs sédimentaires". Nearby pair

Confusion rank #30,905 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list