B1B2GrammarComparison

German Comparative Adjectives: Master -er, Umlaut & Als vs Wie

1 August 2026 · Papagei
Brandenburg Gate with the title “german comparative adjectives” — Papagei German B1/B2 exam preparation

You want to say “this train is faster” or “the exam was harder than I expected,” and suddenly you’re stuck. Do you add -er to the adjective? Does it need an umlaut? And is it “größer als” or “größer wie”? German comparative adjectives look simple on paper but hide several small rules that trip up learners at both B1 and B2 level.

This article walks through the whole system: regular comparatives, the umlaut group, the handful of irregular forms, and how comparatives behave when they sit in front of a noun. Along the way, we’ll name the single most common mistake German learners make with this topic — a mistake so widespread it deserves its own label.


The WIE Trap

Here it is: many learners write or say things like “Der Zug ist schneller wie der Bus.” It sounds fine, especially if you’ve heard it in casual spoken German — plenty of native speakers say it too, particularly in southern Germany and Austria. But in standard written German, and in every B1/B2 exam, this is wrong. The correct word is als:

Why does this trap catch so many people? Because wie does show up in comparisons — just not this kind. German has two comparison structures, and they use different connecting words:

Type of comparisonStructureExample
Equal (as … as)so + adjective + wieDer Bus ist so schnell wie die Bahn.
Unequal (more … than)comparative (-er) + alsDer Zug ist schneller als der Bus.

Once an adjective takes its -er ending, als must follow. Keep this pairing — comparative + als — locked in your head, and the WIE Trap loses its power over you.


Building the Regular Comparative

For most German adjectives, forming the comparative is refreshingly simple: add -er to the base form.

AdjectiveComparativeExample sentence
schnellschnellerDieses Modell läuft schneller als das alte.
billigbilligerDie Wohnung im Erdgeschoss ist billiger als die im dritten Stock.
interessantinteressanterDer zweite Roman ist interessanter als der erste.
ruhigruhigerDas Dorf liegt ruhiger als die Innenstadt.
leichtleichterDie neue Prüfung war leichter als die alte.

Notice that the ending is always -er, regardless of the adjective’s gender, number, or case — as long as the comparative is used predicatively (after a verb like “sein”). We’ll get to what happens in front of a noun shortly, because that’s where German adjective endings come back into play.

If the adjective already ends in -el, -er, or -en, German often drops or simplifies a letter for smoother pronunciation:


The Umlaut Group

A specific set of short, one-syllable adjectives adds an umlaut when forming the comparative, on top of the -er ending. There’s no way around memorizing this list — it’s one of those spots where German just insists on being German.

AdjectiveComparativeExample sentence
altälterMeine Nachbarin ist älter als meine Mutter.
jungjüngerDer Praktikant ist jünger als die anderen Kollegen.
kaltkälterDer Januar war dieses Jahr kälter als sonst.
warmwärmerIn Portugal ist es im Herbst wärmer als in Norddeutschland.
langlängerDie Autobahnstrecke ist länger als die Route durch die Berge.
kurzkürzerDer Weg über den Wald ist kürzer als über die Straße.
starkstärkerDer Kaffee hier ist stärker als der in der Kantine.
schwachschwächerDas Signal im Keller ist schwächer als im Erdgeschoss.
klugklügerSie hat eine klügere Lösung gefunden als ihr Kollege.
gesundgesünderEin Salat ist gesünder als eine Currywurst.
großgrößerDer neue Bahnhof ist größer als der alte.
armärmerDiese Region ist ärmer als der Rest des Landes.

Tip: almost all of these describe basic, physical, or measurable qualities (age, temperature, length, strength). If an adjective feels “elemental” and has one syllable, check whether it belongs to this umlaut group before you write it.


Irregular Comparatives

Just as certain verbs break away from the standard patterns you’d expect in German verb conjugation, a small handful of very common adjectives and adverbs form completely irregular comparatives. These don’t follow the -er rule at all.

Base formComparativeExample sentence
gutbesserDas Ergebnis war besser als erwartet.
vielmehrIch habe dieses Semester mehr Zeit als letztes.
gernlieberIch trinke lieber Tee als Kaffee.
hochhöherDer Berg im Süden ist höher als der im Norden.
nahnäherDer Supermarkt ist näher als die Bäckerei.

Note the spelling shift with hoch: the “ch” disappears before the ending, giving höher, not “höcher.” This is a small but frequent spelling trap on its own.


Comparatives in Front of a Noun

So far, every example has used the comparative after a verb like “sein” or “werden.” But once you place a comparative adjective directly in front of a noun, it needs a regular adjective ending on top of the -er.

The pattern is: stem + -er (comparative) + adjective ending. So “billig” becomes “billiger,” and in front of a feminine noun in the nominative it becomes “eine billigere Wohnung.” The ending itself follows the same rules as any other adjective before a noun — determined by gender, case, and whether there’s an article. This is exactly the layer of grammar that trips learners who’ve only practiced comparatives in isolated sentences without a noun attached.


B2 Extension: JE … DESTO and IMMER + Comparative

At B2 level, exams start expecting two comparative structures beyond the basics.

1. je … desto / je … umso (the … the) links two comparatives in a cause-and-effect relationship:

Word order matters here: after je, the verb goes to the end (like in any subordinate clause); after desto/umso, the comparative comes first, then the verb, similar to the inverted structure you’ll also notice with German modal verbs when a sentence element is fronted for emphasis.

2. immer + comparative expresses a gradual, ongoing increase:

Both structures appear regularly in Goethe and telc B2 writing and speaking tasks, so it’s worth practicing them actively rather than just recognizing them.


Quick Reference Summary

RuleExample
Regular: add -erschnell → schneller
Umlaut group: add umlaut + -eralt → älter
Irregular formsgut → besser, viel → mehr
Use als, never wie, after a comparativeschneller als, not schneller wie
Equal comparison uses wieso schnell wie
Comparative + noun needs an endingein größerer Koffer

If you’d like more listening and reading practice around comparisons in natural context, Deutsche Welle – Learn German has free short articles and audio at both B1 and B2 level that use comparatives constantly in everyday topics like weather, prices, and travel.


Self-Test

Fill in the blank with the correct comparative form, and choose als or wie where needed.

  1. Der Kaffee in dieser Bäckerei ist _______ (stark) als der im Büro.
  2. Meine Wohnung ist genauso ruhig _______ deine.
  3. Wir brauchen einen _______ (groß) Tisch für das Wohnzimmer.
  4. Je mehr ich übe, _______ sicherer werde ich.
  5. Der Zug war heute schneller _______ der Bus.

Answer key:

  1. stärker
  2. wie
  3. größeren
  4. desto
  5. als

Comparative adjectives are one of those topics where a few small rules — umlaut, irregular forms, als vs. wie — make the difference between sounding natural and sounding slightly off. The Papagei app gives you targeted, exam-style exercises on exactly these patterns, with instant feedback so mistakes like the WIE Trap get corrected before exam day. Give it a try and turn this grammar point into one you never have to think twice about again.

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