Word Formation: Noun & Adjective Suffixes
Knowing a handful of suffixes is one of the best shortcuts in German vocabulary building. Once you recognise that -heit/-keit always creates a feminine noun and -ig turns a noun into an adjective, a single root word suddenly unlocks dozens of related forms.
In this lesson you will learn the most common noun suffixes (-heit/-keit, -ung, -schaft, -er) and adjective suffixes (-lich, -ig, -isch, -los, -bar) — what they mean, which gender they carry, and how to avoid the most common mistakes.
Common Noun Suffixes
Each suffix carries a fixed gender — learn the gender with the suffix and you will never have to guess it for individual words.
| Suffix | Gender | Formed from | Meaning / Function | Example |
|---|---|---|---|---|
| -heit | die | adjectives not ending in -lich/-ig/-sam/-bar | abstract state or quality | die Freiheit (freedom), die Krankheit (illness) |
| -keit | die | adjectives ending in -lich, -ig, -sam, -bar | abstract state or quality | die Freundlichkeit (friendliness), die Möglichkeit (possibility) |
| -ung | die | verb stems | result or process of an action | die Lösung (solution), die Meinung (opinion) |
| -schaft | die | nouns / adjectives | group, relationship, or collective state | die Freundschaft (friendship), die Gesellschaft (society) |
| -er | der | verb stems | person who performs an action | der Lehrer (teacher), der Fahrer (driver) |
| -erei | die | verb stems / nouns | place of business or repeated activity | die Bäckerei (bakery) |
| -chen / -lein | das | any noun | diminutive — smaller or endearing form | das Mädchen (girl), das Büchlein (little book) |
Memory hook: -ung, -heit, -keit, -schaft → always die. -chen, -lein → always das.
Common Adjective Suffixes
These suffixes attach to nouns or verb stems to create adjectives. Remember: adjectives are never capitalised mid-sentence in German.
| Suffix | Meaning / Use | Example | English |
|---|---|---|---|
| -lich | relating to; characteristic of | freundlich, täglich, natürlich | friendly, daily, natural |
| -ig | having the quality of a noun | hungrig, mutig, sonnig | hungry, brave, sunny |
| -isch | in the style of; typical of (languages, nationalities, behaviour) | typisch, romantisch, kindisch | typical, romantic, childish |
| -los | without; lacking (-less) | arbeitslos, hilflos, hoffnungslos | unemployed, helpless, hopeless |
| -bar | able to be done (-able / -ible) | machbar, essbar, trinkbar | feasible, edible, drinkable |
| -sam | inclined to; characterised by | langsam, gemeinsam, einsam | slow, shared, lonely |
-los and -bar are near-opposites: essbar = can be eaten; nicht essbar = cannot be eaten. Do not invent esslos — it is not a real word.
Building Word Families
Once you know a root, suffix rules let you build an entire word family. Here is how three roots expand:
| Root | Verb | -ung noun | -heit / -keit noun | -bar adjective |
|---|---|---|---|---|
| frei (free) | befreien | die Befreiung (liberation) | die Freiheit (freedom) | befreibar |
| möglich (possible) | ermöglichen | die Ermöglichung | die Möglichkeit (possibility) | — |
| erklären (to explain) | erklären | die Erklärung (explanation) | — | erklärbar (explainable) |
Pattern 1 — verb → -ung noun: Drop -en from the infinitive, add -ung:
- hoffen → die Hoffnung (hope)
- bedeuten → die Bedeutung (meaning)
- erfahren → die Erfahrung (experience)
Pattern 2 — adjective → abstract noun: Add -heit (default) or -keit (after -lich / -ig / -sam / -bar):
- schön → die Schönheit (beauty)
- freundlich → die Freundlichkeit (friendliness)
- mutig → die Mutigkeit (bravery) — though der Mut is more natural in everyday speech
📖 Examples
Die Freiheit ist ein grundlegendes Menschenrecht.
Freedom is a fundamental human right.
Meine Lehrerin erklärt die Aufgaben immer sehr freundlich.
My teacher always explains the tasks very kindly.
Wir suchen eine gute Lösung für dieses Problem.
We are looking for a good solution to this problem.
Das Wasser aus diesem Brunnen ist trinkbar.
The water from this well is drinkable.
Er hat viel Mut — er ist wirklich sehr mutig.
He has a lot of courage — he is really very brave.
Die Bäckerei öffnet jeden Morgen um sechs Uhr.
The bakery opens every morning at six o'clock.
Ohne Arbeit fühlt er sich hoffnungslos und hilflos.
Without work, he feels hopeless and helpless.
Die Möglichkeit, ins Ausland zu reisen, macht mich sehr glücklich.
The possibility of travelling abroad makes me very happy.
⚠️ Common Mistakes
die Freundlichheitdie Freundlichkeit
Adjectives ending in -lich, -ig, -sam, or -bar always take -keit, not -heit. Reserve -heit for adjectives that do not carry one of these endings — for example: frei → Freiheit, krank → Krankheit.
der Lösungdie Lösung
Every noun ending in -ung is feminine (die), without exception. The same rule applies to -heit, -keit, and -schaft. When you see these suffixes, the article is always die.
hungerlichhungrig
To form an adjective meaning 'having the quality of a noun', use -ig, not -lich. Compare: Hunger → hungrig, Mut → mutig, Sonne → sonnig. Use -lich for 'relating to / characteristic of': freundlich, täglich.
Er ist sehr Mutig.Er ist sehr mutig.
German adjectives are never capitalised mid-sentence. Only nouns and the first word of a sentence are capitalised. The sole exception is an adjective used as a noun: das Mutige (the brave thing).
✏️ Exercises
Test your understanding. Click an option or type your answer, then check.
Which suffix creates a feminine noun from a verb stem meaning 'the result or process of an action' (e.g. hoffen → ___)?
What is the correct adjective meaning 'hungry' formed from the noun 'Hunger'?
What meaning does the suffix -los add to a German word?
Which form correctly turns 'möglich' (possible) into a noun meaning 'possibility'?
Which adjective suffix corresponds to English '-able' or '-ible', meaning something can be done?
A student writes 'Ich bewundere ihre Schönlichkeit.' Which is the correct word?
Die ___ (frei + -heit) ist ein Grundrecht aller Menschen.
Das Wasser aus diesem Fluss ist leider nicht ___ (trinken + -bar).
Er hat leider keine ___ (möglich + -keit), heute zu kommen.
Nach dem langen Wandern war die ganze Gruppe sehr ___ (Hunger + -ig).