inefficace

\i.ne.fi.kas\

/\i.ne.fi.kas\/ adj

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

The verdict

“inefficace” has 12 generated spelling variants in the French index at frequency #18,226. The variants make it a useful spelling check.

#18,226
frequency rank, French
3,561
“I” headwords
12
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Qui n’a pas d’efficacité, qui ne produit pas son effet.

Corpus desk

Index FR-inefficace · inefficace · French

inefficace · rank #18,226 · 12 variants · 2 confusables

  • FREQ-MID #18,226
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-LOW 2 pairs
  • VAR-MID 12 variants
  • BOOK-MID 3,561
  • PHOTO-FINISH India

Nearest frequency peer: India (-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.

Pairs de rang près de l'aimant d'erreurs « inefficace »

Même bande de rareté: utile si une faute tombe sur un lemme voisin

corpus weight

What this shows « inefficace » siège parmi ces pairs FrequencyWords; la profondeur des fautes est suivie à part dans le graphique d'édition.

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).

inefficace vs inefficaces
91% similar
inefficace vs inefficacité
75% similar

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

Key facts for inefficace
PropertyValue
Headwordinefficace
LanguageFrench
Part of speechAdjective
IPA\i.ne.fi.kas\
Letters10
Frequency rank#18,226
Misspellings tracked12
Confusable pairs2
SourceWiktionary (kaikki.org)

Fréquence de l'aimant d'erreurs « inefficace »

Cette échelle va du noyau du français courant (gauche) jusqu'à la traîne des formes rares (droite).inefficacese place ici:

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

Les tics avancent en logarithme; chacun est de l'ordre de dix fois plus rare. Dans la même bande de rareté figurent « India » (#18,225), « inexistant » (#18,227), « incompatibles » (#18,224). Parmi 3,561 lemmes en « I », « inefficace » est au #18,226. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around inefficace (IPA \i.ne.fi.kas\), anadjective. Corpus frequency is #18,226 among 3,561 “I” headwords. Dominant gloss: "Qui n’a pas d’efficacité, qui ne produit pas son effet.".

Our generated misspelling index lists 12 likely wrong-spelling variants for inefficace, with forms such as "ienfficace", "ineffciace", and "ineffiacce". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 2 confusable-pair relationships, "inefficaces", "inefficacité", 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, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is inefficace, spelled I-N-E-F-F-I-C-A-C-E.

Definition

  1. 1
    Qui n’a pas d’efficacité, qui ne produit pas son effet.

Recorded use

Wiktionary examples

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

  1. Et puis, il a desserré peu à peu le crin, dégagé le cou. Il s’est assuré que la bête est indemne, la strangulation inefficace encore.
  2. Tous les remèdes qu’on a appliqués à ce malade ont été inefficaces.

Antonyms

efficace

This word in other languages

ineffective(English)unwirksam(Deutsch)

Common misspellings

Also misspelled as:

  • ienfficace
  • ineffciace
  • ineffiacce
  • inefficacce
  • inefficaec
  • inefficcace
  • inefficcae
  • ineficace
  • inefifcace
  • infeficace
  • innefficace
  • niefficace

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of inefficace - 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.

ienfficace2ineffciace2ineffiacce2inefficacce1inefficaec2inefficcace1inefficcae2ineficace1
Edit distance from "inefficace"

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 "inefficace"?
"inefficace" is spelled I-N-E-F-F-I-C-A-C-E. The IPA pronunciation is \i.ne.fi.kas\.
What does "inefficace" mean?
As an adjective, "inefficace" means: Qui n’a pas d’efficacité, qui ne produit pas son effet.
What words are commonly confused with "inefficace"?
"inefficace" is commonly confused with "inefficaces", "inefficacité". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "inefficace"?
The IPA (International Phonetic Alphabet) transcription for "inefficace" is \i.ne.fi.kas\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "inefficace" come from?
"inefficace" 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 "inefficace", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 10 letters (nearest by frequency rank).

inexistant#18,227libertaire#18,244mécontents#18,261partageons#18,273

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

inaugurée12 variantsGrégory12 variantsGaspésie12 variantsFontenay12 variants

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

Source: FrequencyWords open word-frequency list