curievscurieuxWhich spelling fits?

Quick tell: curie is a noun, curieux is an adjective, so they fill different roles in a sentence.

Which to use

“curie” is a noun and “curieux” is an adjective - they look or sound alike but fill different roles in a sentence.

#16,106
“curie” frequency rank
#2,994
“curieux” frequency rank
19100
confusion score

Side-by-Side Comparison

Feature curie curieux
Definition Subdivision de la tribu chez les Romains. Qui a le désir d’apprendre, de voir des choses nouvelles, intéressantes, rares, etc.

Where the eye mixes curie and curieux

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. curie runs 5 letters (CVCVV) against curieux's 7 (CVCVVVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
curie
7 ch
curieux

Look-alike desk: curie vs curieux

These two trip readers on the page rather than in the ear: curie is \ky.ʁi\ while curieux is \ky.ʁjø\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “curie” sits inside “curieux”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 19100, derived from the frequency rank of both members and their visual similarity.

curie is recorded at frequency rank #16,106, classified as anoun, pronounced \ky.ʁi\. curieux is at rank #2,994, tagged as anadj, pronounced \ky.ʁjø\.

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 19100, this pair ranks #375,011 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of curie vs curieux

Shared letters: ceiru. Private to "curie": -. Private to "curieux": x.

"curie" · 5 letters · shape CVCVV  ·  "curieux" · 7 letters · shape CVCVVVC

Known mistypes of this pair

  • curie ← ccurie · cruie · curei · currie · ucrie
  • curieux ← ccurieux · cruieux · cuireux · cureiux · curieuxx · curiexu · curiuex · currieux

Frequently Asked Questions

Do "curie" and "curieux" mean the same thing in a sentence?
No - they are not even the same part of speech. "curie" is a noun and "curieux" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "curie" or "curieux" show up more?
"curieux" is the more common of the two: it sits at frequency rank #2,994 in our French list, against #16,106 for "curie". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "curie" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "curieux" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #375,011 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "curie" and "curieux" also get mixed up with nearby pairs, the highest-scored neighbour is "curage vs curie". 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 #375,011 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