unmöglichvsunmöglichesWhat's the difference?

Which to use

“unmöglich” and “unmögliches” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#1,829
“unmöglich” frequency rank
#48,575
“unmögliches” frequency rank
50404
confusion score

Side-by-Side Comparison

Feature unmöglich unmögliches
Definition nicht machbar, undurchführbar Nominativ Singular Neutrum der starken Deklination des Positivs des Adjektivs unmöglich

Where the eye mixes unmöglich and unmögliches

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. unmöglich runs 9 letters (VCCVCCVCC) against unmögliches's 11 (VCCVCCVCCVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
unmöglich
11 ch
unmögliches

Visual trap between unmöglich and unmögliches

A purely visual mix-up. unmöglich ([ˈʊnmøːklɪç]) and unmögliches ([ˈʊnmøːklɪçəs]) 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 2 extra letter(s) - “unmöglich” sits inside “unmögliches”. Our composite confusion score for this pair is 50404, derived from the frequency rank of both members and their visual similarity.

unmöglich is recorded at frequency rank #1,829, classified as anadj, pronounced [ˈʊnmøːklɪç]. unmögliches is at rank #48,575, tagged as anadj, pronounced [ˈʊnmøːklɪçəs].

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 50404, this pair ranks #1,174,942 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of unmöglich vs unmögliches

Shared letters: cghilmnuö. Private to "unmöglich": -. Private to "unmögliches": es.

"unmöglich" · 9 letters · shape VCCVCCVCC  ·  "unmögliches" · 11 letters · shape VCCVCCVCCVC

Frequently Asked Questions

Can "unmöglich" and "unmögliches" be used interchangeably?
No. They are said differently ([ˈʊnmøːklɪç] versus [ˈʊnmøːklɪçəs]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "unmöglich" or "unmögliches"?
"unmöglich" is the more common of the two: it sits at frequency rank #1,829 in our German list, against #48,575 for "unmögliches". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "unmöglich" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "unmögliches" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,174,942 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "unmöglich" and "unmögliches" also get mixed up with nearby pairs, the highest-scored neighbour is "unmöglichen vs unmögliches". Nearby pair

Confusion rank #1,174,942 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list