irrational
\ˈɪʁat͡si̯onaːl\
The verdict
“irrational” is uncommon French (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency French
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Irrationnel
Corpus desk
Index FR-irrational · irrational · French
irrational · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 10 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "I" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | irrational |
| Language | French |
| Part of speech | Adjective |
| IPA | \ˈɪʁat͡si̯onaːl\ |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « irrational » en français
Rare enough to double-check
irrational is uncommon French outside the top frequency list, classed as anadjective, transcribed \ˈɪʁat͡si̯onaːl\. Rarity is why readers land here mid-draft. Gloss: "Irrationnel".
No generated misspelling entries exist for irrational in our index, which points to an orthography that plays by predictable French rules. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.
No borrowing history is documented for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is irrational, spelled I-R-R-A-T-I-O-N-A-L.
Definition
- 1Irrationnel
Recorded use
Wiktionary exampleThese source excerpts show how irrational appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Sofortmaßnahmen zum Spritsparen, wie es ein schnell umsetzbares Tempolimit für Autobahnen wäre, oder autofreie Sonntage? Dass sich die FDP dagegen stemmt, aber den Sprit verbilligen will, zeigt, wie irrational und anachronistisch ihr Verhältnis zum Auto ist.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.