seriesvsseriösWhat's the difference?

Quick tell: series is a verb, seriös is an adjective, so they fill different roles in a sentence.

Which to use

“series” is a verb and “seriös” is an adjective - they look or sound alike but fill different roles in a sentence.

#13,018
“series” frequency rank
#12,790
“seriös” frequency rank
25808
confusion score

Side-by-Side Comparison

Feature series seriös
Definition 2. Person Singular Indikativ Konditional Aktiv des Verbs ésser ordentlich

Where the eye mixes series and seriös

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
series
6 ch
seriös

Visual trap between series and seriös

These two trip readers on the page rather than in the ear: series is [səˈɾiəs] while seriös is [zeˈʁi̯øːs]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “series” becomes ö in “seriös”, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 25808, derived from the frequency rank of both members and their visual similarity.

series is recorded at frequency rank #13,018, classified as averb, pronounced [səˈɾiəs]. seriös is at rank #12,790, tagged as anadj, pronounced [zeˈʁi̯øːs].

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 25808, this pair ranks #1,827,675 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of series vs seriös

Shared letters: eirs. Private to "series": -. Private to "seriös": ö.

"series" · 6 letters · shape CVCVVC  ·  "seriös" · 6 letters · shape CVCVVC

Known mistypes of this pair

  • seriesesries · seires · sereis · seriess · serise · serries · sreies · sseries

Frequently Asked Questions

Is swapping "series" for "seriös" ever safe?
No - they are not even the same part of speech. "series" is a verb and "seriös" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "series" or "seriös" show up more?
"seriös" is the more common of the two: it sits at frequency rank #12,790 in our German list, against #13,018 for "series". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "series" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "seriös" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,827,675 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "series" and "seriös" also get mixed up with nearby pairs, the highest-scored neighbour is "Serbiens vs series". 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 #1,827,675 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