ingénieusevsingénieuxConfusable pair

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

Which to use

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

#42,402
“ingénieuse” frequency rank
#21,048
“ingénieux” frequency rank
63450
confusion score

Side-by-Side Comparison

Feature ingénieuse ingénieux
Definition Celle qui conduit des ouvrages ou travaux publics, tels que la construction et l’entretien des routes, la construction des vaisseaux, l’exploitation des mines, ou qui s’occupe, soit théoriquement, soit pratiquement, des applications industrielles et commerciales de la physique, de la mécanique, de la chimie, de l’électricité, et d’autres domaines divers et variés. Qui est plein de ressources, d’esprit, plein d’invention et d’adresse.

Where the eye mixes ingénieuse and ingénieux

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. ingénieuse runs 10 letters (VCCVCVVVCV) against ingénieux's 9 (VCCVCVVVC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
ingénieuse
9 ch
ingénieux

Look-alike desk: ingénieuse vs ingénieux

These two trip readers on the page rather than in the ear: ingénieuse is \ɛ̃.ʒe.njøz\ while ingénieux is \ɛ̃.ʒe.njø\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 63450, derived from the frequency rank of both members and their visual similarity.

ingénieuse is recorded at frequency rank #42,402, classified as anoun, pronounced \ɛ̃.ʒe.njøz\. ingénieux is at rank #21,048, tagged as anadj, pronounced \ɛ̃.ʒe.njø\.

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 63450, this pair ranks #81,908 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of ingénieuse vs ingénieux

Shared letters: eginué. Private to "ingénieuse": s. Private to "ingénieux": x.

"ingénieuse" · 10 letters · shape VCCVCVVVCV  ·  "ingénieux" · 9 letters · shape VCCVCVVVC

Frequently Asked Questions

Can "ingénieuse" and "ingénieux" be used interchangeably?
No - they are not even the same part of speech. "ingénieuse" is a noun and "ingénieux" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ingénieuse" vs "ingénieux" - which ranks higher?
"ingénieux" is the more common of the two: it sits at frequency rank #21,048 in our French list, against #42,402 for "ingénieuse". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "ingénieuse" and "ingénieux" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "ingénieuse" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ingénieux" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #81,908 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ingénieuse" and "ingénieux" also get mixed up with nearby pairs, the highest-scored neighbour is "ingénieure vs ingénieuse". Nearby pair

Confusion rank #81,908 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