Adjectives: Declension

01

Gender Agreement in the Singular

In the singular, adjectives have three distinct endings corresponding to the three grammatical genders.

• Masculine: Usually ends in -y or -i.
• Feminine: Ends in -a.
• Neuter: Ends in -e.

• To jest nowy telefon.

  This is a new phone. (Masculine)

• To jest nowa lampa.

  This is a new lamp. (Feminine)

• To jest nowe okno.

  This is a new window. (Neuter)

02

Hard vs. Soft Stems (-y vs. -i)

While most masculine adjectives end in -y, spelling rules dictate that certain stems must take -i. This occurs primarily when the stem ends in the letters k or g. This affects the masculine singular form, but the feminine and neuter endings remain -a and -e.

• Hard stem: dobry (good), stary (old), czerwony (red).
• Soft/Velar stem: polski (Polish), długi (long), wysoki (tall).

• To jest dobry film.

  This is a good movie.

• Język polski jest ciekawy.

  The Polish language is interesting.

03

Plural Forms: Virile vs. Non-Virile

In the plural, Polish does not use the standard masculine/feminine/neuter distinction. Instead, it divides nouns into two categories:

1. Virile (Masculine Personal): Groups containing at least one male person. The ending is usually -y or -i, often causing a sound change in the stem (e.g., dobry becomes dobrzy).

2. Non-Virile: All other nouns (women, animals, objects, abstract concepts). The ending is almost always -e.

• Tamci mężczyźni są wysocy.

  Those men are tall. (Virile)

• Te kobiety są wysokie.

  These women are tall. (Non-Virile)

• Moje psy są małe.

  My dogs are small. (Non-Virile)

04

Adjectives as Predicates

Unlike in English, where an adjective remains unchanged after the verb "to be" (e.g., The car is red), Polish adjectives must still agree with the subject's gender and number when acting as a predicate.

• Ten samochód jest czerwony.

  This car is red. (Masculine subject)

• Ta książka jest czerwona.

  This book is red. (Feminine subject)

• Dziecko jest wesołe.

  The child is cheerful. (Neuter subject)

05

Relational Adjectives

Polish rarely uses nouns to modify other nouns (like "apple juice" or "train station" in English). Instead, the modifying noun is transformed into a relational adjective. These function exactly like regular adjectives and must decline to match the noun they describe.

Common suffixes for creating these adjectives include -owy and -ny.

• dom (house) becomes domowy (domestic/home-made).
• szkoła (school) becomes szkolny (school-related).
• pomarańcza (orange) becomes pomarańczowy (orange-flavored/colored).

• Lubię sok pomarańczowy.

  I like orange juice.

• To jest ciasto czekoladowe.

  This is a chocolate cake.

06

Case Agreement

Just as nouns change their endings based on their function in the sentence (Subject, Object, Possession, etc.), the adjective attached to that noun must change to the same case.

For example, if a masculine noun changes to the Genitive case (ending in -a), the adjective usually takes the ending -ego.

• Nie mam nowego telefonu.

  I do not have a new phone. (Genitive)

• Mieszkam w dużym domu.

  I live in a big house. (Locative)