montagneusevsmontagneuxConfusable pair

Which to use

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

#29,868
“montagneuse” frequency rank
#25,741
“montagneux” frequency rank
55609
confusion score

Side-by-Side Comparison

Feature montagneuse montagneux
Definition Féminin singulier de montagneux. Où il y a beaucoup de montagnes.

Where the eye mixes montagneuse and montagneux

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. montagneuse runs 11 letters (CVCCVCCVVCV) against montagneux's 10 (CVCCVCCVVC) - the length gap alone is often enough to separate them once you know to check it.

11 ch
montagneuse
10 ch
montagneux

Why the eye confuses montagneuse with montagneux

A purely visual mix-up. montagneuse (\mɔ̃.ta.ɲøz\) and montagneux (\mɔ̃.ta.ɲø\) 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 1 letter(s) in length. Our composite confusion score for this pair is 55609, derived from the frequency rank of both members and their visual similarity.

montagneuse is recorded at frequency rank #29,868, classified as anadj, pronounced \mɔ̃.ta.ɲøz\. montagneux is at rank #25,741, tagged as anadj, pronounced \mɔ̃.ta.ɲø\.

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 55609, this pair ranks #126,370 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of montagneuse vs montagneux

Shared letters: aegmnotu. Private to "montagneuse": s. Private to "montagneux": x.

"montagneuse" · 11 letters · shape CVCCVCCVVCV  ·  "montagneux" · 10 letters · shape CVCCVCCVVC

Known mistypes of this pair

  • montagneusemmontagneuse · mnotagneuse · monatgneuse · monntagneuse · montagenuse · montaggneuse · montagnesue · montagneues
  • montagneuxmmontagneux · mnotagneux · monatgneux · monntagneux · montagenux · montaggneux · montagneuxx · montagnexu

Frequently Asked Questions

Is swapping "montagneuse" for "montagneux" ever safe?
No. They are said differently (\mɔ̃.ta.ɲøz\ versus \mɔ̃.ta.ɲø\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "montagneuse" or "montagneux"?
"montagneux" is the more common of the two: it sits at frequency rank #25,741 in our French list, against #29,868 for "montagneuse". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "montagneuse" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "montagneux" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #126,370 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "montagneuse" and "montagneux" also get mixed up with nearby pairs, the highest-scored neighbour is "montagneuse vs montagneuses". 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 #126,370 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