A Ukrainian adjective is not a fixed word the way an English adjective is. English "new" stays "new" whether it sits before a table, a book, a window, or a hundred windows. The Ukrainian for "new" changes its ending to match: нови́й стіл (new table), нова́ кни́га (new book), нове́ вікно́ (new window), нові́ столи́ (new tables). The adjective agrees with its noun in three things at once — gender, number, and case — so a single dictionary word like нови́й generates a whole family of forms. This page teaches that agreement and the one structural fact behind all of it: every adjective belongs to either the hard or the soft stem type, and the stem type decides which endings it takes.
The core idea: an adjective copies its noun's grammar
An adjective and its noun form a matched pair. Whatever the noun is — masculine or feminine or neuter, singular or plural, nominative or any of the other six cases — the adjective must echo it. The endings on the two words rhyme: in у нові́й кни́зі "in the new book," both нові́й and кни́зі are feminine, singular, locative, and you can hear the agreement in the parallel endings. This is the single biggest shift for an English speaker: the adjective ending is not decoration, it carries grammatical information, exactly as the noun ending does.
The dictionary form: masculine nominative singular
Adjectives are listed in dictionaries in their masculine nominative singular form, which ends in -ий (hard) or -ій (soft): нови́й "new," га́рний "nice," вели́кий "big"; си́ній "blue," да́вній "ancient," ра́нній "early." From this one form you derive the feminine, neuter, and plural by swapping the ending.
| Gender / number | Hard (нови́й "new") | Soft (си́ній "blue") |
|---|---|---|
| masculine sg. | нови́й | си́ній |
| feminine sg. | нова́ | си́ня |
| neuter sg. | нове́ | си́нє |
| plural (all genders) | нові́ | си́ні |
Notice that the plural is the same for all three genders — нові́ goes with masculine, feminine, and neuter nouns alike. Gender distinctions exist only in the singular. That makes the plural the easiest part of the system.
У ме́не нови́й телефо́н, але́ стара́ заря́дка — нія́к не куплю́ нову́.
I have a new phone but an old charger — I just can't get around to buying a new one. — masculine нови́й with телефо́н, feminine стара́ with заря́дка, feminine accusative нову́.
Яке́ га́рне в те́бе па́льто! Нове́?
What a lovely coat you have! Is it new? — neuter га́рне and нове́ agreeing with the neuter noun па́льто.
The two stem types: HARD vs SOFT
Every adjective belongs to one of two classes, and the class is fixed for the word — you learn it the way you learn a noun's gender.
A hard-stem adjective ends in -ий in the masculine and takes the vowel set -ий / -а / -е / -і. The vast majority of Ukrainian adjectives are hard: нови́й, ста́рий, до́брий, вели́кий, мали́й, га́рний, висо́кий, дороги́й.
A soft-stem adjective ends in -ій in the masculine and takes the front-vowel set -ій / -я / -є / -і. Soft adjectives are a small, closed group — си́ній "blue," ра́нній "early," пі́зній "late," да́вній "ancient," сере́дній "middle/average," дома́шній "home(made)," сусі́дній "neighbouring," and a handful of others, many ending in -ній.
| Hard stem | Soft stem | |
|---|---|---|
| masculine | -ий (нови́й) | -ій (си́ній) |
| feminine | -а (нова́) | -я (си́ня) |
| neuter | -е (нове́) | -є (си́нє) |
| plural | -і (нові́) | -і (си́ні) |
The difference is whether the consonant before the ending is hard or soft, and it echoes through every single case form — so the stem type is not a footnote, it is the first thing you need to know about an adjective.
Куплю́ си́ню су́кню — си́ній ко́лір мені́ найбі́льше до вподо́би.
I'll buy the blue dress — blue is the colour I like best. — soft feminine си́ню with су́кню, soft masculine си́ній with ко́лір.
Це наш дома́шній ре́цепт борщу́ — переда́ється з поколі́ння в поколі́ння.
This is our home recipe for borscht — it's been passed down from generation to generation. — soft-stem дома́шній with the masculine ре́цепт.
Attributive vs predicative position
An adjective can sit in front of its noun (attributive — the default, like English) or after a linking verb with no noun beside it (predicative). Both still agree in gender and number.
In the attributive position the adjective normally precedes the noun: га́рна дівчина "a pretty girl," вели́кий буди́нок "a big building." Ukrainian can place the adjective after the noun for emphasis or in fixed terminology (Збро́йні Си́ли "Armed Forces," кисло́та сі́рчана in chemistry), but for a beginner: adjective first.
In the predicative position the adjective stands after the (usually invisible) verb "to be," describing the subject: Дім нови́й "The house is new," Кни́га ціка́ва "The book is interesting." Because the present-tense copula is dropped in Ukrainian, the predicative adjective often appears with no verb at all — and it still takes the nominative and still agrees in gender.
Це нови́й буди́нок, а той, навпаки́, ду́же стари́й.
This is a new building, and that one, on the contrary, is very old. — attributive нови́й before буди́нок, predicative стари́й with no copula.
Ця ву́лиця ти́ха, тому́ ми тут і живемо́.
This street is quiet, that's exactly why we live here. — predicative ти́ха agreeing with the feminine ву́лиця, copula dropped.
Why this matters: the agreement load is doubled
Here is the insight English speakers most often miss. In English the grammatical information sits only on the noun (and barely even there — English nouns mostly only mark plural). In Ukrainian the same information is marked twice: once on the noun and once on the adjective. Consider у нові́й кни́зі "in the new book": the femininity, the singularity, and the locative case are all spelled out on both words. So learning to read and produce Ukrainian means learning to keep two endings in sync, not one. When you change the noun's case, you must change the adjective's ending to match — every time.
Я знайшо́в цей ві́рш у нові́й кни́зі украї́нської пое́зії.
I found this poem in a new book of Ukrainian poetry. — adjective нові́й and noun кни́зі both feminine singular locative; the agreement is visible on both endings.
З нови́м прое́ктом до нас прийшли́ нові́ можли́вості — скориста́ймося ни́ми.
With the new project came new opportunities — let's make use of them. — instrumental нови́м and nominative-plural нові́ both built off the one dictionary word нови́й.
The full set of case endings for the hard type lives on hard-stem adjective declension; the soft type is on soft-stem adjective declension. The seven cases themselves are introduced on the seven cases.
Source-language comparison
For an English speaker, the leap is that adjectives inflect at all — English lost its adjective endings centuries ago, so "the big house / the big houses / in the big house" never touches "big." In Ukrainian, all three would change the adjective. Build the habit early: never store an adjective as a bare stem; store it as a word that must agree.
For a Russian speaker, the agreement system itself is familiar, but two things differ: the soft type in Ukrainian patterns differently (Ukrainian си́ній vs the Russian синий have non-identical case sets), and Ukrainian has distinctive endings the Russian system lacks. Don't assume the endings transfer one-to-one — verify them against the Ukrainian paradigm rather than reaching for the Russian one.
Common Mistakes
❌ нови́й кни́га, нова́ стіл
Agreement error — the adjective must match the noun's gender: feminine кни́га takes нова́, masculine стіл takes нови́й.
✅ нова́ кни́га, нови́й стіл
a new book, a new table — adjective agrees in gender.
❌ нови́й вікно́
Gender error — вікно́ is neuter, so the adjective takes the neuter -е: нове́ вікно́.
✅ нове́ вікно́
a new window — neuter agreement.
❌ си́ний о́чі (using the hard ending on a soft adjective)
Stem-type error — си́ній is a SOFT-stem adjective, so its plural is си́ні, not си́ні spelled the hard way: си́ні о́чі.
✅ си́ні о́чі
blue eyes — soft-stem plural си́ні.
❌ у нови́й кни́зі (adjective left in the nominative)
Case error — when the noun goes into the locative (кни́зі), the adjective must follow: у нові́й кни́зі. The adjective can't stay nominative while the noun changes.
✅ у нові́й кни́зі
in the new book — both words in the feminine locative.
❌ Дім нова́ (adjective not matching the noun's gender in the predicate)
Agreement error — even predicatively the adjective agrees: masculine дім takes нови́й — Дім нови́й.
✅ Дім нови́й
The house is new — masculine predicative нови́й, copula dropped.
Key Takeaways
- A Ukrainian adjective agrees with its noun in gender, number, and case — it is a mirror, not a fixed word.
- The dictionary form is masculine nominative singular in -ий (hard) or -ій (soft); from it you build feminine, neuter, and plural.
- Hard stem: -ий / -а / -е / -і (нови́й / нова́ / нове́ / нові́). Soft stem: -ій / -я / -є / -і (си́ній / си́ня / си́нє / си́ні). The plural is gender-neutral.
- Adjectives normally precede the noun (attributive) but can stand after a dropped copula (predicative: Дім нови́й) — agreement holds either way.
- Because agreement is marked on both the adjective and the noun, every case change touches two endings — keep them in sync.
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Start learning Ukrainian→Related Topics
- Hard-Stem Adjective DeclensionA2 — The full declension of hard-stem adjectives (the нови́й 'new' type) across all seven cases, three singular genders, and the plural. The endings — -ого, -ому, -им, -ою, -их, -ими — are the same set you meet on demonstratives and most pronouns, so learning нови́й unlocks the agreement endings for той, котри́й, and the bulk of the adjective system at once. Includes the velar-stem spelling (вели́кий → вели́кого but вели́кі) and the animacy split in the masculine and plural accusative.
- Soft-Stem Adjective DeclensionB1 — The small but high-frequency soft-stem class — си́ній, да́вній, дома́шній, сусі́дній and the rest of the -ній family — runs a paradigm parallel to the hard stem but carries the SOFT series of endings throughout: -ього not -ого, -ьому not -ому, -ім not -им, -іх not -их. Once you know which adjectives are soft, you apply one extra rule and the whole declension follows.
- Grammatical Gender: Masculine, Feminine, NeuterA1 — Ukrainian sorts every noun into three genders — masculine, feminine, neuter — and you can predict which about 90% of the time from the nominative singular ending; gender then drives all adjective, pronoun, and past-tense agreement, so it must be learned with each word.
- The Seven Cases: OverviewA1 — Ukrainian has SEVEN cases — nominative, genitive, dative, accusative, instrumental, locative, and a living vocative — each marked by an ending on the noun rather than by word order, so the same job English does with prepositions and position, Ukrainian does with the word's tail.
- Adjective Agreement in All CasesB1 — Every modifier in a Ukrainian noun phrase — possessive, demonstrative, and adjective alike — agrees with the head noun in gender, number, AND case all at once. Decline a full phrase like мій нови́й украї́нський друг through all seven cases (gen мого́ ново́го украї́нського дру́га, dat моє́му ново́му украї́нському дру́гові, instr мої́м нови́м украї́нським дру́гом) and the agreement chain falls into place: change the case of the noun, and every word in front of it changes to match.