The vast majority of Russian adjectives are hard-stemmed: но́вый, кра́сный, ста́рый. A much smaller group is genuinely soft-stemmed, and almost all of these end in -ний in the masculine: после́дний, сосе́дний, си́ний. They are not "exceptions" you guess at — they form a closed, memorisable list, and crucially their meanings cluster: nearly every one names a point in time, a relation in space, or a position in an order. This page gives you the entire class in one place, the declension model to attach to all of them, and the one pair every learner trips on: soft си́ний ("dark blue") versus hard голубо́й ("light blue"). For the broader hard/soft split and why the endings differ, see hard-stem and soft-stem adjectives.
What "soft" means for an adjective
A soft-stem adjective takes the soft series of vowel endings in every gender, number and case. Compare the nominative singular against a hard adjective like но́вый:
| Hard (но́вый) | Soft (после́дний) | |
|---|---|---|
| Masc. | но́вый | после́дний |
| Fem. | но́вая | после́дняя |
| Neut. | но́вое | после́днее |
| Plural | но́вые | после́дние |
The pattern is mechanical: wherever a hard adjective has -ы-/-о-/-а-, the soft adjective has the palatal counterpart -и-/-е-/-я-. So -ый→-ий, -ая→-яя, -ое→-ее, -ые→-ие. This is not a spelling-rule effect (the kind triggered by ж, ш, ч, щ, к, г, х — see spelling rules in endings); it is a real soft stem ending in soft -н-.
The full declension model: после́дний
Learn this one paradigm and you can decline every adjective on the list. Animacy affects the masculine/neuter accusative exactly as it does for hard adjectives.
| Case | Masc. | Neut. | Fem. | Plural |
|---|---|---|---|---|
| Nom. | после́дний | после́днее | после́дняя | после́дние |
| Gen. | после́днего | после́днего | после́дней | после́дних |
| Dat. | после́днему | после́днему | после́дней | после́дним |
| Acc. | = nom./gen. | после́днее | после́днюю | = nom./gen. |
| Inst. | после́дним | после́дним | после́дней (-нею) | после́дними |
| Prep. | после́днем | после́днем | после́дней | после́дних |
Note the genitive masculine/neuter -него and the feminine -ней — the soft mirror of hard -ого/-ой. As with all adjectives, the masculine/neuter genitive -его is pronounced with a /v/: после́днего sounds like paslédneva.
Э́то был мой после́дний рабо́чий день пе́ред о́тпуском.
That was my last working day before the holiday. — masc. nom. после́дний.
Я не по́мню после́днего разгово́ра с ним.
I don't remember the last conversation with him. — masc. gen. после́днего after не по́мню.
The class: time, place and order
Here is the working inventory. Group them by meaning — that's how they actually stick.
Time
| Adjective | Meaning |
|---|---|
| после́дний | last, final |
| вчера́шний | yesterday's |
| сего́дняшний | today's |
| за́втрашний | tomorrow's |
| у́тренний | morning (adj.) |
| ве́черний | evening (adj.) |
| ле́тний | summer (adj.) |
| зи́мний | winter (adj.) |
| весе́нний | spring (adj.) |
| осе́нний | autumn (adj.) |
| ра́нний | early |
| по́здний | late |
| да́вний | long-standing, of long ago |
A close cousin, сле́дующий ("next, following"), is also a soft adjective but it does not belong to the -ний model: its stem ends in -щ- (сле́дующий, сле́дующая, сле́дующее), so it declines like a ж/ш/щ-stem governed by the spelling rules (gen. сле́дующего, fem. сле́дующей) rather than like после́дний. Treat it as soft but learn it apart from this list.
Place
| Adjective | Meaning |
|---|---|
| сосе́дний | neighbouring, adjacent |
| дома́шний | home, domestic |
| бли́жний | near, nearer |
| да́льний | far, distant |
| кра́йний | extreme, outermost, last in a row |
| сре́дний | middle, central; average |
A few qualities
A small remainder don't fit time or place — they're plain descriptive qualities that happen to be soft-stemmed:
| Adjective | Meaning |
|---|---|
| си́ний | dark blue |
| сре́дний | average, medium (as in 'average height') |
В сосе́дней ко́мнате кто-то включи́л у́треннюю переда́чу.
In the next room someone turned on the morning programme. — fem. prep. сосе́дней + fem. acc. у́треннюю, both soft.
Дава́й сде́лаем э́то на сле́дующей неде́ле.
Let's do it next week. — сле́дующей, fem. prep. after на.
По́здним ве́чером у́лицы бы́ли совсе́м пусты́е.
Late in the evening the streets were completely empty. — по́здним ве́чером, both instrumental of time, soft endings.
си́ний vs голубо́й: the blue trap
Russian splits "blue" into two basic colour words, and they belong to different stem classes:
- си́ний — dark/deep blue, a soft adjective (си́ний, си́няя, си́нее, си́ние; gen. си́него).
- голубо́й — light blue, sky blue, a hard adjective with stressed -о́й ending (голубо́й, голуба́я, голубо́е, голубы́е; gen. голубо́го).
This is not a stylistic synonym pair — Russians treat them as two separate colours, the way English treats "red" and "pink." A clear summer sky is голубо́е; the deep blue of the sea or of dark denim is си́нее. And because they sit in different stem classes, their endings differ throughout:
Она́ всегда́ хо́дит в си́них джи́нсах и голубо́й руба́шке.
She always wears dark-blue jeans and a light-blue shirt. — си́них (soft, plural prep.) vs голубо́й (hard, fem. prep.).
Под я́сным голубы́м не́бом мо́ре каза́лось почти́ си́ним.
Under the clear sky-blue sky the sea looked almost dark-blue. — hard голубы́м vs soft си́ним, both instrumental.
How this differs from English
English adjectives don't decline at all, so the hard/soft split has no analogue — an English speaker has no instinct for it and must build one. Two practical consequences. First, you can't derive membership in this class from meaning alone (though time/place is a strong hint); you memorise the list, the way you'd memorise irregular plurals. Second — and this is the one that bites — English has a single word "blue" where Russian forces a choice between си́ний and голубо́й, and choosing wrong is not a small slip: calling a pale sky си́нее sounds as off as an English speaker calling a pale-pink shirt "red." Lock in the pair early.
Common Mistakes
❌ после́дный авто́бус
Wrong ending — this is a soft adjective, so the masculine is -ний: после́дний, never the hard -ный.
✅ после́дний авто́бус
the last bus
❌ в сосе́дной ко́мнате
Soft adjective takes the soft feminine prepositional -ней, not the hard -ной.
✅ в сосе́дней ко́мнате
in the neighbouring room
❌ голубо́е мо́ре (for deep blue sea)
голубо́й is light/sky blue; the deep blue of the open sea is си́нее.
✅ си́нее мо́ре
the deep-blue sea
❌ дома́шный а́дрес
дома́шний is soft — masculine -ний, so дома́шний а́дрес.
✅ дома́шний а́дрес
home address
❌ ра́нной весно́й
ра́нний is soft; the feminine instrumental is ра́нней, not the hard ра́нной.
✅ ра́нней весно́й
in early spring
Key Takeaways
- Soft adjectives form a closed class ending in -ний; learn the list rather than guessing.
- They take soft endings throughout: nom. -ний / -няя / -нее / -ние, gen. -него / -ней, exactly mirroring hard -ый/-ого with palatal vowels.
- The model paradigm is после́дний — master it once and it covers the whole class.
- Almost every member names time (после́дний, ле́тний, у́тренний, ра́нний…), place (сосе́дний, дома́шний, бли́жний, да́льний, кра́йний), or order/position (сре́дний).
- The colour си́ний ("dark blue," soft) is the standout quality member; keep it apart from hard голубо́й ("light/sky blue") — Russians treat them as two distinct colours.
Now practice Russian
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Start learning Russian→Related Topics
- Hard-Stem and Soft-Stem AdjectivesA2 — Russian adjectives fall into two main declension patterns. Hard-stem adjectives (the big majority: но́вый, кра́сный, ста́рый) take -ый/-ая/-ое/-ые; soft-stem adjectives (the small -ний family: после́дний, си́ний, дома́шний, ле́тний) take -ий/-яя/-ее/-ие. Two 'mixed' groups follow the hard pattern but bend it to spelling rules: velar stems (ма́ленький, ру́сский, дорого́й) and hushing stems (хоро́ший, большо́й) write -ий/-его where a plain hard stem would write -ый/-ого. The stressed-ending type (большо́й, молодо́й) keeps -о́й in the masculine.
- Adjective Agreement: The BasicsA1 — Russian adjectives agree with their noun in gender, number, AND case. In the nominative the endings are masculine -ый/-ий/-ой (но́вый, ма́ленький, большо́й), feminine -ая/-яя (но́вая, после́дняя), neuter -ое/-ее (но́вое, после́днее), and plural -ые/-ие (но́вые) for all genders. So 'new' is но́вый дом, но́вая маши́на, но́вое окно́, but но́вые кни́ги. Adjectives also change for case (в но́вом до́ме) and normally come BEFORE the noun, as in English.
- Full Adjective Declension TablesA2 — The complete case-by-case declension of Russian adjectives, for both hard stems (но́вый) and soft stems (после́дний). Masculine and neuter share all oblique forms (gen -ого/-его, dat -ому/-ему, instr -ым/-им, prep -ом/-ем); the feminine collapses genitive=dative=instrumental=prepositional into a single -ой/-ей, with -ую/-юю in the accusative; the plural shares gen=prep -ых/-их, dat -ым/-им, instr -ыми/-ими. The masculine accusative splits by animacy (но́вого студе́нта vs но́вый стол), and the -ого/-его ending is pronounced with a /v/ (но́вого = 'nóvava').
- Spelling Rules in Noun EndingsA2 — Two orthographic rules silently reshape the case endings you predict: after к г х ж ш щ ч you write и not ы (so кни́га → кни́ги, never *кни́гы), and after ж ш щ ч ц an unstressed ending vowel is written е not о (so му́ж → му́жем, but a stressed one stays о: оте́ц → отцо́м); treat them as an automatic filter applied after you choose the ending, never as exceptions to learn case by case.