radioactif

\ʁa.djo.ak.tif\

/\ʁa.djo.ak.tif\/ adj

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

The verdict

“radioactif” has 14 generated spelling variants in the French index at frequency #26,498. The variants make it a useful spelling check.

#26,498
frequency rank, French
5,742
“R” headwords
14
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Qui est doué de radioactivité.

Corpus desk

Index FR-radioactif · radioactif · French

radioactif · rank #26,498 · 14 variants · 2 confusables

  • FREQ-MID #26,498
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 14 variants
  • BOOK-DENSE 5,742
  • PHOTO-FINISH pépère

Nearest frequency peer: pépère (-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 « radioactif »

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

corpus weight

What this shows « radioactif » 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).

radioactif vs radioactifs
91% similar
radioactif vs radioactive
82% similar

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

Key facts for radioactif
PropertyValue
Headwordradioactif
LanguageFrench
Part of speechAdjective
IPA\ʁa.djo.ak.tif\
Letters10
Frequency rank#26,498
Misspellings tracked14
Confusable pairs2
SourceWiktionary (kaikki.org)

Fréquence de l'aimant d'erreurs « radioactif »

La fréquence va de la poignée de mots du quotidien (gauche) à la longue queue presque jamais vue (droite).radioactifse place ici:

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

L'axe est logarithmique: chaque tic marque environ dix fois moins de fréquence. Dans la même bande de rareté figurent « pépère » (#26,497), « rationnels » (#26,499), « péniblement » (#26,496). Parmi 5,742 lemmes en « R », « radioactif » est au #26,498. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around radioactif (IPA \ʁa.djo.ak.tif\), anadjective. Corpus frequency is #26,498 among 5,742 “R” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 14 likely wrong-spelling variants for radioactif, with forms such as "ardioactif", "raddioactif", and "radiaoctif". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 2 confusable-pair relationships, "radioactifs", "radioactive", where similar look or sound leads writers to substitute one word for another in context.

No documented word history exists for this headword, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct French form is radioactif, spelled R-A-D-I-O-A-C-T-I-F.

Definition

  1. 1
    Qui est doué de radioactivité.
  2. 2
    Néfaste.
  3. 3
    Qui pénètre tout, à quoi rien ne résiste.

Recorded use

Wiktionary examples

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

  1. Au moment même où vous lisez ces lignes, du césium 137, hautement radioactif, est toujours présent, parfois à des concentrations importantes, sur les trois quarts de l’Europe. Y compris en France, notamment dans les régions les plus à l’est.
  2. L'idée est de creuser un trou minuscule dans la corne du rhinocéros pour y glisser un fragment radioactif petit comme un grain de sable.

This word in other languages

radioactive(English)radioactivo(Español)radioaktiv(Deutsch)radioativo(Português)

Common misspellings

Also misspelled as:

  • ardioactif
  • raddioactif
  • radiaoctif
  • radioacctif
  • radioacitf
  • radioactfi
  • radioactiff
  • radioacttif
  • radioatcif
  • radiocatif
  • radoiactif
  • raidoactif
  • rdaioactif
  • rradioactif

Misspelling Pattern Breakdown

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

ardioactif2raddioactif1radiaoctif2radioacctif1radioacitf2radioactfi2radioactiff1radioacttif1
Edit distance from "radioactif"

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 "radioactif"?
"radioactif" is spelled R-A-D-I-O-A-C-T-I-F. The IPA pronunciation is \ʁa.djo.ak.tif\.
What does "radioactif" mean?
As an adjective, "radioactif" means: Qui est doué de radioactivité.
What words are commonly confused with "radioactif"?
"radioactif" is commonly confused with "radioactifs", "radioactive". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "radioactif"?
The IPA (International Phonetic Alphabet) transcription for "radioactif" is \ʁa.djo.ak.tif\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "radioactif" come from?
"radioactif" 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.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "radioactif", not the corpus desk frequency band.

Same letter count

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

rationnels#26,499recouvrant#26,503prussienne#26,486promulguée#26,485

Similar misspelling depth

Headwords with a similar count of attested misspellings (14 here; floor ≥5).

pénaliser14 variantsproclamée14 variantsobsolètes14 variantsnécessités14 variants

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

Source: FrequencyWords open word-frequency list