idée fixe

\i.de fiks\

/\i.de fiks\/ noun

The verdict

“idée fixe” is outside the top-ranked French vocabulary, used as a noun - the kind of word writers most often double-check.

Unranked
below top-frequency French
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Idée qui occupe et obsède l’esprit sans relâche, au point d’interférer dans des ordres de considération ; et qui pour un esprit rassis lui paraîtraient étrangères.

Key facts for idée fixe
PropertyValue
Headwordidée fixe
LanguageFrench
Part of speechNoun
IPA\i.de fiks\
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “idée fixe” sits in French frequency

idée fixe falls outside the top-100,000 ranked French words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The French entry for idée fixe is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as \i.de fiks\. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Idée qui occupe et obsède l’esprit sans relâche, au point d’interférer dans des ordres de considération ; et qui pour un esprit rassis lui paraîtraient étrangères.".

No generated misspelling entries exist for idée fixe in our index, a sign its spelling follows regular French conventions. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This entry carries no recorded etymology, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is idée fixe, spelled I-D-É-E- -F-I-X-E.

Definition

  1. 1
    Idée qui occupe et obsède l’esprit sans relâche, au point d’interférer dans des ordres de considération ; et qui pour un esprit rassis lui paraîtraient étrangères.

Synonyms

This word in other languages

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.

Frequently Asked Questions

How do you spell "idée fixe"?
"idée fixe" is spelled I-D-É-E- -F-I-X-E. The IPA pronunciation is \i.de fiks\.
What does "idée fixe" mean?
As a noun, "idée fixe" means: Idée qui occupe et obsède l’esprit sans relâche, au point d’interférer dans des ordres de considération ; et qui pour un esprit rassis lui paraîtraient étrangères.
How do you pronounce "idée fixe"?
The IPA (International Phonetic Alphabet) transcription for "idée fixe" is \i.de fiks\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "idée fixe" come from?
"idée fixe" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

Using “idée fixe”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct French spelling is I-D-É-E- -F-I-X-E - every other letter order is a misspelling in standard orthography.
  • Say it as \i.de fiks\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list