décidémentvsdéfilementWhich spelling fits?

Quick tell: décidément is a adverb, défilement is a noun, so they fill different roles in a sentence.

Which to use

“décidément” is an adverb and “défilement” is a noun - they look or sound alike but fill different roles in a sentence.

#7,428
“décidément” frequency rank
#48,465
“défilement” frequency rank
55893
confusion score

Side-by-Side Comparison

Feature décidément défilement
Definition D’une manière décidée, ferme. Méthode pour préserver des coups d’enfilade un ouvrage ou une troupe, ou résultat de cette méthode.

Where the eye mixes décidément and défilement

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. décidément and défilement follow the identical consonant-vowel pattern (CVCVCVCVCC). Same shape at a glance is often the real trap, independent of shared letters.

10 ch
décidément
10 ch
défilement

Visual trap between décidément and défilement

These two trip readers on the page rather than in the ear: décidément is \de.si.de.mɑ̃\ while défilement is \de.fil.mɑ̃\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 55893, derived from the frequency rank of both members and their visual similarity.

décidément is recorded at frequency rank #7,428, classified as anadv, pronounced \de.si.de.mɑ̃\. défilement is at rank #48,465, tagged as anoun, pronounced \de.fil.mɑ̃\.

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 55893, this pair ranks #124,523 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of décidément vs défilement

Shared letters: deimnté. Private to "décidément": c. Private to "défilement": fl.

"décidément" · 10 letters · shape CVCVCVCVCC  ·  "défilement" · 10 letters · shape CVCVCVCVCC

Frequently Asked Questions

Is swapping "décidément" for "défilement" ever safe?
No - they are not even the same part of speech. "décidément" is an adverb and "défilement" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "décidément" or "défilement" show up more?
"décidément" is the more common of the two: it sits at frequency rank #7,428 in our French list, against #48,465 for "défilement". 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 "décidément" and "défilement" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "décidément" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "défilement" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #124,523 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "décidément" and "défilement" also get mixed up with nearby pairs, the highest-scored neighbour is "déferlement vs défilement". Nearby pair

Confusion rank #124,523 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