Long and short forms of adjectives in Russian language

Adjectives that describe a state of being have two forms, a long form and a short form:

интересные факты – interesting facts факты интересны – the facts are interesting пустой холодильник – an empty fridge холодильник пуст – the fridge is empty

Note: рад (glad) and должен (obliged to) have only short forms

Long forms of adjectives agree in gender, case and number with the noun that they refer to:

Я люблю снежную солнечную зиму. I love the snowy, sunny winter.

Short forms of adjectives agree in gender and number with the noun that they refer to. They do not decline. They are used only as predicative adjectives.

Это прекрасная картина. This is a splendid picture.

Эта картина прекрасна. This picture is splendid.

Forms

		Long form (nominative)	Short form
singular	masculine	красивый город a beautiful town	город красив the town is beautiful
	feminine	глубокая река a deep river	река глубока the river is deep
	neuter	правильное решение a correct decision	решение правильно the decision is correct
plural		красивые дома beautiful houses	дома красивы houses are beautiful

Fleeting Vowels

When there are two consonants together at the end of the stem of the long adjective, then a «fleeting» -о or -е (-ё) is inserted in the masculine short form:близкий (close by) → близок, долгий (long) → долог, бедный (poor) → беден

fleeting vowel : -о before -к- низкий (low) – низок лёгкий (light) – легок сладкий (sweet) – сладок тонкий (thin) – тонок узкий (narrow) – узок

fleeting vowel : -е(-ё) before -н больной (ill) – болен вредный (harmful) – вреден полезный (useful) – полезен трудный (difficult) – труден нужный (necessary) – нужен

But: полный (full) – полон, горький (bitter) – горек, смешной (funny) – смешон

There is no fleeting vowel between -с and -т: простой (simple, easy) – прост, пустой (empty) – пуст, толстый (fat, thick) – толст, чистый (clean, pure) – чист

Function in the sentence

Long adjectives can be used to qualify nouns or after certain verbs (быть, стать…):

Я смотрел интересный фильм. – I watched an interesting film. Фильм был интересный. The film was interesting.

Short adjectives can only be used as predicative adjectives.

Эти встречи интересны. These meetings are interesting.

The use of long and short forms of adjectives.

Long form

1. spoken language 2. for a permanent characteristic 3. a characteristic of the person or object described

Short form

1. more literary, formal language 2. for a temporary state 3. a characteristic that depends on exterior factors

Note:

With word ‘это’ always use neuter short form: Это понятно. – That makes sense. Это было странно. – It was odd.
Certain adjectives have very different meanings in their long and short forms Пушкин – великий поэт. – Pushkin is a great poet. Эти туфли мне велики. – These shoes are too big for me.

Read also: Adjectives in Russian language