rationnel
\ʁa.sjɔ.nɛl\
The verdict
“rationnel” is a moderately-common French word, ranked #13,674 in French word frequency and used as an adjective.
- #13,674
- frequency rank, French
- 9
- letters
- 11
- tracked misspellings
- 4
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Ce que l’on ne conçoit que par l’entendement.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | rationnel |
| Language | French |
| Part of speech | Adjective |
| IPA | \ʁa.sjɔ.nɛl\ |
| Letters | 9 |
| Frequency rank | #13,674 |
| Misspellings tracked | 11 |
| Confusable pairs | 4 |
| Source | Wiktionary (kaikki.org) |
Where “rationnel” sits in French frequency
Spelling & Dictionary Insight
The French entry for rationnel is 9 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as \ʁa.sjɔ.nɛl\. Corpus data places it at rank #13,674 in overall French word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 7 distinct senses for this headword, so context determines which meaning a reader should apply.
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
- 1Ce que l’on ne conçoit que par l’entendement.
- 2Qualifie 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.
- 3Qui est raisonné, qui est fondé sur le raisonnement.
- 4Qualifie la partie des théories mécaniques dans le développement desquelles l’analyse mathématique joue le principal rôle.
- 5Qualifie un objet mathématique obtenu par le quotient de deux objets mathématiques d'une nature plus élémentaire, comme un nombre rationnel ou une fraction rationnelle.
- 6Qualifie 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(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.
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.
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"?
What does "rationnel" mean?
What words are commonly confused with "rationnel"?
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Is PlainSpell free to use?
Using “rationnel”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is R-A-T-I-O-N-N-E-L - every other letter order is a misspelling in standard orthography.
- Say it as \ʁa.sjɔ.nɛl\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “rationnels” - see the side-by-side comparison. rationnel vs rationnels
- Browse more French words and confusable pairs in the same reference. French words
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.