rationnel

\ʁa.sjɔ.nɛl\

/\ʁa.sjɔ.nɛl\/ adj

The verdict

“rationnel” has 11 generated spelling variants in the French index at frequency #13,674. The variants make it a useful spelling check.

#13,674
frequency rank, French
5,742
“R” headwords
11
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Ce que l’on ne conçoit que par l’entendement.

Corpus desk

Index FR-rationnel · rationnel · French

rationnel · rank #13,674 · 11 variants · 4 confusables

  • FREQ-MID #13,674
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-MID 4 pairs
  • VAR-MID 11 variants
  • BOOK-DENSE 5,742
  • PHOTO-FINISH raids

Nearest frequency peer: raids (-1 rank slots)

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbourhood for “rationnel”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “rationnel” sits against the nearest ranked French headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

rationnel vs rationnels
90% similar
rationnel vs rationnelle
82% similar
rationnel vs relationnel
82% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for rationnel
PropertyValue
Headwordrationnel
LanguageFrench
Part of speechAdjective
IPA\ʁa.sjɔ.nɛl\
Letters9
Frequency rank#13,674
Misspellings tracked11
Confusable pairs4
SourceWiktionary (kaikki.org)

Où “rationnel” se place dans la fréquence du français

La fréquence va de la poignée de mots du quotidien (gauche) à la longue queue presque jamais vue (droite).rationnelse place ici:

#1#100#1K#10K#100K
← used constantlyrarely used →

L'échelle est logarithmique (chaque tic ≈ 10× plus rare). Dans la même bande de rareté figurent « raids » (#13,673), « relou » (#13,675), « querelle » (#13,672). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around rationnel (IPA \ʁa.sjɔ.nɛl\), anadjective. Corpus frequency is #13,674 among 5,742 “R” headwords. Wiktionary lists 7 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for rationnel, with forms such as "artionnel", "raitonnel", and "ratinonel". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 4 confusable-pair relationships, "rationnels", "rationnelle", "relationnel", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Our source data has no etymology on file for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct French form is rationnel, spelled R-A-T-I-O-N-N-E-L.

Definition

  1. 1
    Ce que l’on ne conçoit que par l’entendement.
  2. 2
    Qualifie le plan de l’horizon, rapporté au centre de la Terre et prolongé indéfiniment dans l’espace ; par opposition à horizon sensible, celui que l’on suppose toucher la Terre au point où est l’observateur et qui est perpendiculaire à la verticale.
  3. 3
    Qui est raisonné, qui est fondé sur le raisonnement.
  4. 4
    Qualifie la partie des théories mécaniques dans le développement desquelles l’analyse mathématique joue le principal rôle.
  5. 5
    Qualifie un objet mathématique obtenu par le quotient de deux objets mathématiques d'une nature plus élémentaire, comme un nombre rationnel ou une fraction rationnelle.
  6. 6
    Qualifie un acheteur qui suit le modèle théorique de l'offre et de la demande, sans tenir compte de sa capacité à s'informer, ni des limites de temps dans la prise de décision, ni des facteurs sociaux et psychologiques.
  7. 7
    (Intelligence Artificielle) Qualifie un agent qui dépend à un instant donné de quatre facteurs : • la mesure de performance qui définit le critère de succès ; • la connaissance de l'environnement précédemment acquise par l'agent ; • les actions que l'agent peut réaliser ; • la séquence de percepts de l'agent au moment considéré.

Recorded use

Wiktionary examples

These source excerpts show how rationnel appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. L’esprit du christianisme n’est pas rationnel, au sens grec du terme, puisque Dieu était au-delà de la raison et que « Son ordonnance de l’univers » devait être acceptée et non expliquée.
  2. Pour atteindre ce but tous les moyens ne sont pas indifférents ; il y a des lois à observer et une marche rationnelle à suivre.

Antonyms

This word in other languages

Common misspellings

Also misspelled as:

  • artionnel
  • raitonnel
  • ratinonel
  • rationel
  • rationenl
  • rationnell
  • rationnle
  • ratoinnel
  • rattionnel
  • rrationnel
  • rtaionnel

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of rationnel - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

artionnel2raitonnel2ratinonel2rationel1rationenl2rationnell1rationnle2ratoinnel2
Edit distance from "rationnel"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "rationnel"?
"rationnel" is spelled R-A-T-I-O-N-N-E-L. The IPA pronunciation is \ʁa.sjɔ.nɛl\.
What does "rationnel" mean?
As an adjective, "rationnel" means: Ce que l’on ne conçoit que par l’entendement.
What words are commonly confused with "rationnel"?
"rationnel" is commonly confused with "rationnels", "rationnelle", "relationnel". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "rationnel"?
The IPA (International Phonetic Alphabet) transcription for "rationnel" is \ʁa.sjɔ.nɛl\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "rationnel" come from?
"rationnel" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "rationnel", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 9 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

What to do next

You've looked up "rationnel". Here's where to go from here.

  • "rationnel" maps to 4 confusable pairs in this vintage; the highest-scored is "rationnels". View pair
  • 11 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
  • Usage frequency rank #13,674 among French headwords in this corpus. Corpus statistics
  • Browse more French words in the "R" letter cohort. R–Z browse

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list