You already know that verbs and prepositions assign case. A smaller, less obvious fact is that a handful of adjectives do the same: they take a complement, and that complement stands in the genitive. Pełen nadziei (full of hope), świadomy ryzyka (aware of the risk), wart zachodu (worth the trouble) — in each, the adjective itself governs the case of the noun that completes its meaning. This is a B2/C1 refinement that most courses skip, and it is worth knowing precisely because it is lexically fixed: you cannot derive it, you learn which adjectives belong to the club.
The pattern: adjective + genitive complement
An English adjective that needs a complement usually borrows a preposition: full *of water, aware **of the risk, worthy **of praise, sure **of victory. Polish does it differently. For this set of adjectives there is *no preposition: the adjective simply takes its complement in the genitive, exactly the way szukać (to look for) or używać (to use) take a genitive object.
Dzbanek był pełen wody.
The jug was full of water.
Jest w pełni świadomy ryzyka.
He is fully aware of the risk.
So you treat the adjective as a little governor. The thing it is "full of / aware of / worthy of" goes straight into the genitive, with no of to translate.
The core set
These are the adjectives you will actually meet. Learn them as fixed items.
| Adjective | Meaning | Example |
|---|---|---|
| pełen / pełny + gen. | full of | pełen energii — full of energy |
| świadomy + gen. | aware/conscious of | świadomy konsekwencji — aware of the consequences |
| pewien / pewny + gen. | sure/certain of | pewien zwycięstwa — sure of victory |
| godny + gen. | worthy of | godny zaufania — worthy of trust |
| wart + gen. | worth | wart zachodu — worth the trouble |
| ciekaw / ciekawy + gen. | curious about | ciekaw świata — curious about the world |
| spragniony + gen. | thirsting/craving for | spragniony wiedzy — thirsting for knowledge |
| żądny + gen. | greedy/hungry for | żądny władzy — hungry for power |
| łakomy + gen. | greedy for | łakomy sławy — greedy for fame |
To film wart obejrzenia.
It's a film worth watching.
Jestem ciekaw twojej opinii.
I'm curious about your opinion.
Był spragniony wiedzy i ciągle czytał.
He was thirsting for knowledge and read constantly.
The short forms: pełen, pewien, ciekaw, wart, godzien
Several of these adjectives have a short (predicative) form alongside the normal long form, and you will see them especially in fixed phrases and elevated style. The short forms are uninflected for case (they don't take the usual -y / -a / -e endings) but they still govern the genitive.
| Long form | Short form | Note |
|---|---|---|
| pełny | pełen | pełen is the everyday choice before a genitive: pełen nadziei |
| pewny | pewien | pewien = "sure of" / also "a certain" |
| ciekawy | ciekaw | ciekaw (literary/predicative): jestem ciekaw |
| godny | godzien | godzien (literary): godzien pochwały |
| warty | wart | both occur before a genitive; the short wart is especially common in the predicate: wart zachodu |
Pełen nadziei zaczął nowy rok.
Full of hope, he began the new year.
Nie jestem pewien wyniku.
I'm not sure of the result.
Czyn godzien pochwały.
A deed worthy of praise. (literary)
In conversation the long forms pełny and pewny are perfectly normal too — pełny szacunku, pewny siebie — but with these adjectives the short forms feel idiomatic and are extremely common in set expressions. Pewny siebie (self-confident, lit. "sure of himself") is a frozen everyday phrase that, notice, also takes a genitive complement (siebie).
Negation does not change the case here
With verbs, a negated genitive-or-accusative situation can shift to genitive of negation. With these adjectives there is nothing to shift: the complement was already genitive, so negating the adjective leaves it untouched.
Nie jestem świadomy żadnego problemu.
I'm not aware of any problem.
On nie jest wart twoich łez.
He's not worth your tears.
Why English speakers miss this
English learners reach this point already comfortable that verbs govern case (szukam pracy — I'm looking for work, genitive). The leap is realising that adjectives do too — a category English never marks, because English adjectives lean on prepositions (aware of, worthy of) and the noun after the preposition shows no special form. So the instinct is to look for a preposition to translate of, and to leave the noun in some "default" case. There is no preposition, and the default is wrong: the complement is genitive. The fix is simply to learn the list above as lexical facts, the same way you learned that słuchać takes the genitive. The set is closed and small, which is the good news — once you know these eight or nine, you have essentially all of them.
There is also no shortcut for choosing between the long and short forms — pełen vs pełny, ciekaw vs ciekawy. Both govern the genitive identically; the short forms are simply more idiomatic in predicative position and in fixed phrases, and more frequent in writing. Read enough and the rhythm of pełen nadziei over ?pełny nadziei becomes an ear thing.
Common Mistakes
❌ Dzbanek był pełen wodę.
Incorrect — pełen governs the genitive, not the accusative.
✅ Dzbanek był pełen wody.
The jug was full of water. (wody = genitive)
❌ Jestem świadomy o ryzyku.
Incorrect — no preposition; świadomy takes a bare genitive.
✅ Jestem świadomy ryzyka.
I'm aware of the risk.
❌ Ten film jest wart obejrzenie.
Incorrect — wart governs the genitive (obejrzenia), not the accusative.
✅ Ten film jest wart obejrzenia.
This film is worth watching.
❌ Jestem pewny o zwycięstwie.
Incorrect — calques English 'sure about'; Polish uses a bare genitive.
✅ Jestem pewny zwycięstwa.
I'm sure of victory.
Key Takeaways
- A closed set of adjectives takes a genitive complement with no preposition, mirroring how verbs govern case.
- Core members: pełen, świadomy, pewien, godny, wart, ciekaw, spragniony, żądny, łakomy.
- Several have short predicative forms (pełen, pewien, ciekaw, godzien, wart) that are idiomatic in fixed phrases; they still govern the genitive.
- Do not insert o or any preposition to render English of/about.
- Negation does not alter the case — the complement was genitive to begin with.
Now practice Polish
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