Russian adjectives come in two shapes: the long form you've been declining (но́вый, за́нятый, гото́вый) and a short form used only as a predicate (нов, за́нят, гото́в). The long-vs-short page covers when to choose one over the other. This page answers the prior question every learner asks: which adjectives even have a short form? The answer divides Russian adjectives cleanly — and learning the divide saves you from inventing forms that don't exist (there is no short form of деревя́нный). It also collects the short forms you'll actually meet daily, including a small set that are so predicate-bound they live only in the short form (рад "glad"). Several of these are everyday survival words: Я согла́сен ("I agree"), Ты прав ("You're right"), Он за́нят ("He's busy").
Only qualitative adjectives have short forms
The dividing line is qualitative vs relational:
- Qualitative adjectives name a gradable quality — something that can be more or less, very or slightly: happy, busy, tired, healthy, sure. These form short forms (and comparatives).
- Relational adjectives name a fixed relation — material, origin, time, possession: wooden, Russian, golden, yesterday's. A thing is either wooden or it isn't; you can't be "very wooden." These have no short form (and no comparative).
| Qualitative → has short form | Relational → no short form |
|---|---|
| за́нятый → за́нят (busy) | деревя́нный (wooden) — none |
| здоро́вый → здоро́в (healthy) | ру́сский (Russian) — none |
| гото́вый → гото́в (ready) | золото́й (golden) — none |
| у́мный → умён (clever) | вчера́шний (yesterday's) — none |
The short forms you'll actually use
Short forms aren't evenly distributed — a handful are extremely high-frequency precisely because they're predicates of state ("I am X"). These are the ones to memorise first. The four forms are masculine (bare stem), feminine -а, neuter -о, plural -ы/-и:
| Long form | Masc. | Fem. | Neut. | Plural | Meaning |
|---|---|---|---|---|---|
| рад (no long form!) | рад | ра́да | ра́до | ра́ды | glad |
| (до́лжный) | до́лжен | должна́ | должно́ | должны́ | must, obliged |
| согла́сный | согла́сен | согла́сна | согла́сно | согла́сны | in agreement |
| уве́ренный | уве́рен | уве́рена | уве́рено | уве́рены | sure, confident |
| гото́вый | гото́в | гото́ва | гото́во | гото́вы | ready |
| за́нятый | за́нят | занята́ | за́нято | за́няты | busy, occupied |
| свобо́дный | свобо́ден | свобо́дна | свобо́дно | свобо́дны | free, available |
| больно́й | бо́лен | больна́ | больно́ | больны́ | ill |
| здоро́вый | здоро́в | здоро́ва | здоро́во | здоро́вы | healthy |
| пра́вый | прав | права́ | пра́во | пра́вы | right (correct) |
| винова́тый | винова́т | винова́та | винова́то | винова́ты | guilty, at fault |
| похо́жий | похо́ж | похо́жа | похо́же | похо́жи | similar, alike |
| ну́жный | ну́жен | нужна́ | ну́жно | нужны́ | needed |
| спосо́бный | спосо́бен | спосо́бна | спосо́бно | спосо́бны | capable |
| дово́льный | дово́лен | дово́льна | дово́льно | дово́льны | satisfied, pleased |
— Согла́сен? — Согла́сен.
— Agree? — Agreed. — Я согла́сен is the everyday way to say 'I agree'; the long form is almost never used here.
Извини́, я сейча́с за́нят, перезвоню́ че́рез час.
Sorry, I'm busy right now, I'll call back in an hour. — за́нят, the standard predicate for 'busy'.
Ты соверше́нно прав, я об э́том не поду́мал.
You're absolutely right, I hadn't thought of that. — прав, the only natural way to say 'you're right'.
рад: short-form only
A few adjectives exist only as short forms — there is no long рад*ый to decline. рад ("glad") is the headline example: you can be рад, ра́да, ра́ды, but you cannot put a long-form рад before a noun. It's a pure predicate of emotion:
Я о́чень рад тебя́ ви́деть!
I'm so glad to see you! — рад has no long form; this is the only shape it takes.
Мы бу́дем ра́ды ви́деть вас за́втра.
We'll be glad to see you tomorrow. — ра́ды, plural; still short-form-only.
до́лжен ("must, obliged") is similar — it functions almost entirely as a short-form predicate of obligation, paired with an infinitive, and you won't use the long form до́лжный in ordinary speech:
Ты должна́ была́ предупреди́ть меня́ зара́нее.
You should have warned me in advance. — должна́ (fem.) + past 'to be' = obligation in the past.
The fleeting vowel in the masculine
This is the bit that catches people. When the long-form stem ends in a difficult consonant cluster, the masculine short form inserts a vowel (о or е) to break it up — a "fleeting" (mobile) vowel that appears only in the masculine and vanishes in the feminine, neuter and plural:
| Long form | Masc. (vowel inserted) | Fem. (no vowel) |
|---|---|---|
| у́мный | умён | умна́ |
| по́лный | по́лон | полна́ |
| голо́дный | голо́ден | голодна́ |
| ну́жный | ну́жен | нужна́ |
| больно́й | бо́лен | больна́ |
| тру́дный | тру́ден | трудна́ |
So a man is умён but a woman is умна́ — the о disappears the moment you leave the masculine. The choice of о vs е follows the surrounding consonants (е after a soft consonant or after ж/ш/etc., о otherwise), the same logic as the fleeting vowels in noun genitive plurals.
Он умён, но о́чень лени́в.
He's clever but very lazy. — умён with the fleeting ё; the feminine would be умна́.
Я ужа́сно голо́ден, дава́й пое́дим.
I'm terribly hungry, let's eat. — голо́ден (masc., fleeting о); голодна́ for a woman.
How this differs from English
English has no short/long adjective split at all — busy is busy whether attributive ("a busy man") or predicative ("the man is busy"). So three things are genuinely new. First, the very existence of a separate predicate form: Russian often prefers за́нят (short) over за́нятый (long) for "is busy." Second, agreement on the predicate: the short form still marks gender and number (за́нят / занята́ / за́няты), where English "busy" never changes. Third, a small group of meanings that English expresses with ordinary adjectives or verbs — glad, must, agree, right — Russian packages as short-form predicates (рад, до́лжен, согла́сен, прав), several of which have no long form at all. The practical upshot: when you want to say "I'm glad / I agree / you're right / I'm busy," reach for the short form, not the long one.
Common Mistakes
❌ Я ра́дый тебя́ ви́деть.
рад has no long form — use the short form рад/ра́да/ра́ды.
✅ Я рад тебя́ ви́деть.
I'm glad to see you.
❌ Она́ за́нят сейча́с.
The short form agrees in gender — a woman is занята́, not the masculine за́нят.
✅ Она́ сейча́с занята́.
She's busy right now.
❌ Э́тот стол деревя́нен.
деревя́нный is relational ('wooden') — relational adjectives have no short form; use the long form.
✅ Э́тот стол деревя́нный.
This table is wooden.
❌ Она́ о́чень умён.
The fleeting vowel is masculine-only; the feminine is умна́, with no inserted vowel.
✅ Она́ о́чень умна́.
She's very clever.
❌ Ты согла́сный со мной?
For 'do you agree?' use the short-form predicate согла́сен/согла́сна, not the long form.
✅ Ты согла́сен со мной?
Do you agree with me?
Key Takeaways
- Only qualitative adjectives (gradable: pass the о́чень-test) form short forms; relational ones (деревя́нный, ру́сский, золото́й) never do.
- The highest-frequency short forms are predicates of state: рад, до́лжен, согла́сен, уве́рен, гото́в, за́нят, свобо́ден, бо́лен, здоро́в, прав, винова́т, похо́ж, ну́жен, спосо́бен, дово́лен.
- A few — notably рад and до́лжен — exist essentially only as short forms; there's no usable long form to decline.
- Short forms still agree in gender and number: за́нят / занята́ / за́няты, прав / права́ / пра́вы.
- The masculine often inserts a fleeting vowel to break a cluster (у́мный → умён, по́лный → по́лон, голо́дный → голо́ден); it disappears in the feminine/neuter/plural (умна́, полна́, голодна́).
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Start learning Russian→Related Topics
- Short-Form AdjectivesB1 — Russian adjectives have a second, predicate-only form — the short form — that marks only gender and number, never case. Masculine takes a bare stem (за́нят, здоро́в, ра́д), feminine -а (занята́, больна́), neuter -о (за́нято, закры́то), plural -ы/-и (за́няты, закры́ты). Short forms appear after the zero copula (Он за́нят; Дверь закры́та; Я гото́в) and often express a TEMPORARY state, against the long form's permanent/categorizing meaning: Он бо́лен ('he's ill right now') vs Он больно́й ('he's sickly'). A few adjectives — рад, до́лжен, согла́сен, нужен, гото́в — live mainly or only in the short form. Short forms cannot be used attributively.
- Relational Adjectives (Noun-Modifying-Noun in Russian)B1 — English stacks nouns to modify nouns — 'bus stop', 'orange juice', 'car factory'. Russian almost never does this; instead it turns the first noun into a relational adjective with a suffix like -н-, -ск-, or -ов- and makes it agree: авто́бусная остано́вка, апельси́новый сок, автомоби́льный заво́д. These adjectives express material, origin, purpose, or association, and — crucially — they describe no degree, so they form no comparatives (there is no *бо́лее шко́льный). This page shows the main suffix types and trains the English noun-noun → Russian adjective+noun reflex.
- 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.
- 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.