Which to use
“radioaktive” and “radioaktiver” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #28,341
- “radioaktive” frequency rank
- #42,748
- “radioaktiver” frequency rank
- 71089
- confusion score
Side-by-Side Comparison
| Feature | radioaktive | radioaktiver |
|---|---|---|
| Definition | Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs radioaktiv | Nominativ Singular Maskulinum der starken Deklination des Positivs des Adjektivs radioaktiv |
Where the eye mixes radioaktive and radioaktiver
Muted = shared; highlighted = the visual trap. They share 11 letters in sequence. radioaktive runs 11 letters (CVCVVVCCVCV) against radioaktiver's 12 (CVCVVVCCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses radioaktive with radioaktiver
A purely visual mix-up. radioaktive ([ˌʁadi̯oʔakˈtiːvə]) and radioaktiver ([ˌʁadi̯oʔakˈtiːvɐ]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “radioaktive” sits inside “radioaktiver”. Our composite confusion score for this pair is 71089, derived from the frequency rank of both members and their visual similarity.
radioaktive is recorded at frequency rank #28,341, classified as anadj, pronounced [ˌʁadi̯oʔakˈtiːvə]. radioaktiver is at rank #42,748, tagged as anadj, pronounced [ˌʁadi̯oʔakˈtiːvɐ].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 71089, this pair ranks #427,100 of 2,006,359 scored German confusable pairs - among the most confusable pairs.
Orthographic DNA of radioaktive vs radioaktiver
Shared letters: adeikortv. Private to "radioaktive": -. Private to "radioaktiver": -.
"radioaktive" · 11 letters · shape CVCVVVCCVCV · "radioaktiver" · 12 letters · shape CVCVVVCCVCVC
Known mistypes of this pair
- radioaktive ← ardioaktive · raddioaktive · radiaoktive · radioakitve · radioakktive · radioaktiev · radioaktivve · radioakttive
- radioaktiver ← ardioaktiver · raddioaktiver · radiaoktiver · radioakitver · radioakktiver · radioaktievr · radioaktiverr · radioaktivre
Frequently Asked Questions
Can "radioaktive" and "radioaktiver" be used interchangeably?
In ordinary German text, does "radioaktive" or "radioaktiver" show up more?
After this comparison
Eye-level mix-up between "radioaktive" and "radioaktiver" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "radioaktive" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "radioaktiver" - compare definitions side by side with the headword page. Word entry
- This pair ranks #427,100 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "radioaktive" and "radioaktiver" also get mixed up with nearby pairs, the highest-scored neighbour is "radioaktiv vs radioaktiver". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #427,100 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.