impenetrable

\impeneˈtɾaple\

/\impeneˈtɾaple\/ adj

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“impenetrable” is uncommon French (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency French
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Impénétrable.

Corpus desk

Index FR-impenetrable · impenetrable · French

impenetrable · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 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.

Key facts for impenetrable
PropertyValue
Headwordimpenetrable
LanguageFrench
Part of speechAdjective
IPA\impeneˈtɾaple\
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Où “impenetrable” se place dans la fréquence du français

impenetrablesiège au-delà des 100.000 formes les plus fréquentes du français, dans la traîne du lexique spécialisé ou peu usité.

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

Rare enough to double-check

impenetrable is uncommon French outside the top frequency list, classed as anadjective, transcribed \impeneˈtɾaple\. Rarity is why readers land here mid-draft. Gloss: "Impénétrable.".

The misspelling generator found no plausible variants for impenetrable, since its letter pattern doesn't lend itself to common typo substitutions. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Our source data has no etymology on file for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is impenetrable, spelled I-M-P-E-N-E-T-R-A-B-L-E.

Definition

  1. 1
    Impénétrable.

Antonyms

penetrable

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 "impenetrable"?
"impenetrable" is spelled I-M-P-E-N-E-T-R-A-B-L-E. The IPA pronunciation is \impeneˈtɾaple\.
What does "impenetrable" mean?
As an adjective, "impenetrable" means: Impénétrable.
How do you pronounce "impenetrable"?
The IPA (International Phonetic Alphabet) transcription for "impenetrable" is \impeneˈtɾaple\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "impenetrable" come from?
"impenetrable" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

What to do next

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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