radioaktive

[ˌʁadi̯oʔakˈtiːvə]

/[ˌʁadi̯oʔakˈtiːvə]/ adj

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

The verdict

“radioaktive” has 15 generated spelling variants in the German index at frequency #28,341. The variants make it a useful spelling check.

#28,341
frequency rank, German
42,116
“R” headwords
15
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs radioaktiv

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

radioaktive vs radioaktiven
92% similar
radioaktive vs radioaktiver
92% similar
radioaktive vs radioaktiv
91% similar

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

Key facts for radioaktive
PropertyValue
Headwordradioaktive
LanguageGerman
Part of speechAdjective
IPA[ˌʁadi̯oʔakˈtiːvə]
Letters11
Frequency rank#28,341
Misspellings tracked15
Confusable pairs3
SourceWiktionary (kaikki.org)

Where “radioaktive” sits in German frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). radioaktive lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 15 spelling variants around radioaktive (IPA [ˌʁadi̯oʔakˈtiːvə]), anadjective. Corpus frequency is #28,341 among 42,116 “R” headwords. Wiktionary lists 9 senses, so context still picks the gloss.

Our generated misspelling index lists 15 likely wrong-spelling variants for radioaktive, with forms such as "ardioaktive", "raddioaktive", and "radiaoktive". 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 3 confusable-pair relationships, "radioaktiven", "radioaktiver", "radioaktiv", a pairing that trips writers up because the two words share enough sound or shape to blur together.

No borrowing history is documented for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct German form is radioaktive, spelled R-A-D-I-O-A-K-T-I-V-E.

Definition

  1. 1
    Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs radioaktiv
  2. 2
    Akkusativ Singular Femininum der starken Deklination des Positivs des Adjektivs radioaktiv
  3. 3
    Nominativ Plural alle Genera der starken Deklination des Positivs des Adjektivs radioaktiv
  4. 4
    Akkusativ Plural alle Genera der starken Deklination des Positivs des Adjektivs radioaktiv
  5. 5
    Nominativ Singular alle Genera der schwachen Deklination des Positivs des Adjektivs radioaktiv
  6. 6
    Akkusativ Singular Femininum der schwachen Deklination des Positivs des Adjektivs radioaktiv
  7. 7
    Akkusativ Singular Neutrum der schwachen Deklination des Positivs des Adjektivs radioaktiv
  8. 8
    Nominativ Singular Femininum der gemischten Deklination des Positivs des Adjektivs radioaktiv
  9. 9
    Akkusativ Singular Femininum der gemischten Deklination des Positivs des Adjektivs radioaktiv

Common misspellings

Also misspelled as:

  • ardioaktive
  • raddioaktive
  • radiaoktive
  • radioakitve
  • radioakktive
  • radioaktiev
  • radioaktivve
  • radioakttive
  • radioaktvie
  • radioatkive
  • radiokative
  • radoiaktive
  • raidoaktive
  • rdaioaktive
  • rradioaktive

Misspelling Pattern Breakdown

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

ardioaktive2raddioaktive1radiaoktive2radioakitve2radioakktive1radioaktiev2radioaktivve1radioakttive1
Edit distance from "radioaktive"

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 German corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "radioaktive"?
"radioaktive" is spelled R-A-D-I-O-A-K-T-I-V-E. The IPA pronunciation is [ˌʁadi̯oʔakˈtiːvə].
What does "radioaktive" mean?
As an adjective, "radioaktive" means: Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs radioaktiv
What words are commonly confused with "radioaktive"?
"radioaktive" is commonly confused with "radioaktiven", "radioaktiver", "radioaktiv". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "radioaktive"?
The IPA (International Phonetic Alphabet) transcription for "radioaktive" is [ˌʁadi̯oʔakˈtiːvə]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "radioaktive" come from?
"radioaktive" is a German 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.

Using “radioaktive”

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

  • The one correct German spelling is R-A-D-I-O-A-K-T-I-V-E - every other letter order is a misspelling in standard orthography.
  • Say it as [ˌʁadi̯oʔakˈtiːvə] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “radioaktiven” - see the side-by-side comparison. radioaktive vs radioaktiven
  • Browse more German words and confusable pairs in the same reference. German words

Same frequency band

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