When an adjective heads the phrase
Russian can omit or lexicalise the noun while an adjectival form carries the phrase's grammatical features.
- The head-like adjective still declines by the long paradigm and participates in gender, number, case, and accusative animacy.
- Control point: An adjective ending can now express features of an understood or lexicalised referent even when no overt noun follows.
3.19 · When an adjective heads the phrase · table 1
| Full phrase | Adjective-headed form | Profile |
|---|
| больно́й челове́к | больно́й | masculine person |
|---|
| больна́я же́нщина | больна́я | feminine person |
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| де́журный сотру́дник | де́журный | role/person |
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| гла́вное де́ло | гла́вное | neuter abstract |
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| ро́дные лю́ди | ро́дные | plural people |
|---|
People and roles
Many adjective-shaped lexemes conventionally denote people by state, occupation, relationship, or role.
- Some remain transparently adjective-like; others are dictionary nouns with adjectival declension. Their syntactic behaviour matters more than forcing one historical label.
- Control point: Lexical gender and human reference determine agreement. Use paired feminine forms only where established and appropriate to the referent and register.
3.19 · People and roles · table 1
| Form | Meaning | Example |
|---|
| больно́й / больна́я | patient / sick person | врач осмотре́л больно́го |
|---|
| знако́мый / знако́мая | acquaintance | встре́тить знако́мую |
|---|
| де́журный | person on duty | позвони́ть де́журному |
|---|
| вое́нный | military service member | разгова́ривать с вое́нным |
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| рабо́чий | worker | но́вые рабо́чие |
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| учёный | scholar/scientist | ру́сские учёные |
|---|
Case and animacy without an overt noun
Adjective-headed person expressions follow the same animate accusative rule as overt noun phrases.
- Other cases use the ordinary long-adjective endings. The missing noun does not remove the construction's grammatical profile.
- Control point: Parse больно́го from syntax and animacy, not from an assumed invisible word alone.
- Retrieval checkpoint: Pause and reconstruct the diagnostic forms from the last three lessons without looking, then check what you missed.
3.19 · Case and animacy without an overt noun · table 1
| Case | Example | Reason |
|---|
| nom. masc. | Больно́й ждёт. | subject |
|---|
| acc. masc. animate | Врач ви́дит больно́го. | acc. = gen. |
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| dat. masc. | Врач помог больно́му. | recipient/target |
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| instr. masc. | Врач говори́т с больны́м. | с + instrumental |
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| acc. plural animate | Врач ви́дит больны́х. | acc. = gen. plural |
|---|
Places, rooms, and establishments
Feminine adjective-shaped nouns often name rooms, facilities, or establishments through an historically understood head such as ко́мната.
- They now function as lexical nouns while retaining adjectival declension.
- Control point: Do not add a second noun ending: столо́вая → в столо́вой, exactly like a feminine long adjective.
3.19 · Places, rooms, and establishments · table 1
| Lexeme | Meaning | Oblique example |
|---|
| столо́вая | canteen/dining room | в столо́вой |
|---|
| ва́нная | bathroom | из ва́нной |
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| приёмная | reception room/office | к приёмной |
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| бу́лочная | bakery shop | о́коло бу́лочной |
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| пра́чечная | laundry | за пра́чечной |
|---|
Neuter abstracts and plural collectives
Neuter and plural forms can name abstract domains, time periods, information, or groups.
- Some are lexicalised nouns; others are productive contextual adjective-headed phrases.
- Control point: Lexicalised plural forms may not denote a countable group in the ordinary way; learn their number and government as part of the lexeme.
3.19 · Neuter abstracts and plural collectives · table 1
| Form | Meaning | Example |
|---|
| гла́вное | the main thing | Начнём с гла́вного. |
|---|
| про́шлое | the past | по́мнить о про́шлом |
|---|
| бу́дущее | the future | ду́мать о бу́дущем |
|---|
| настоя́щее | the present | жить настоя́щим |
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| ро́дные | relatives/loved ones | помога́ть ро́дным |
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| да́нные | data | но́вые да́нные |
|---|
Lexical substantivisation versus contextual ellipsis
A lexicalised adjective-headed word has a conventional noun-like meaning; contextual ellipsis recovers an omitted noun from the immediate discourse.
- Both decline adjectivally, but only the second changes interpretation freely with context.
- Control point: Elliptical agreement preserves the understood noun's gender, number, case, and animacy. Change the context and the form may change.
- Retrieval checkpoint: Pause and reconstruct the diagnostic forms from the last three lessons without looking, then check what you missed.
3.19 · Lexical substantivisation versus contextual ellipsis · table 1
| Type | Example | Recovered meaning |
|---|
| lexical | больно́й | patient/sick person conventionally |
|---|
| lexical | столо́вая | canteen/dining room conventionally |
|---|
| ellipsis | Возьму́ кра́сную. | the red one; e.g. руба́шку |
|---|
| ellipsis | Мне ну́жен большо́й. | a big masculine item from context |
|---|
| ellipsis | Покажи́те но́вые. | new plural items from context |
|---|
Nationalities and language labels
Some nationality words are substantivised adjectives, while others use noun morphology; language names often omit язы́к in educational contexts.
- Do not impose one pattern on every nationality or language.
- Control point: Person, language, and manner forms are separate lexical constructions: ру́сский, ру́сский язы́к, and по-ру́сски.
3.19 · Nationalities and language labels · table 1
| Expression | Analysis | Example |
|---|
| ру́сский / ру́сская | adjective-shaped nationality noun | говори́ть с ру́сским |
|---|
| ру́сские | plural nationality/group | ви́деть ру́сских |
|---|
| францу́з | ordinary noun | говори́ть с францу́зом |
|---|
| ру́сский (язы́к) | contextual omission | учи́ть ру́сский |
|---|
| по-ру́сски | adverb | говори́ть по-ру́сски |
|---|
Invariant borrowed modifiers
Modern Russian uses borrowed or clipped modifiers that do not overtly change for gender, number, or case.
- Depending on the lexeme and analysis, dictionaries may call them invariant adjectives, nouns in apposition, or compound components. Behaviour in the phrase is the practical diagnostic.
- Control point: Do not fabricate endings such as *ха́кий or *ми́ниая. If an agreeing derivative exists, it is a different lexical form.
3.19 · Invariant borrowed modifiers · table 1
| Expression | Invariant item | Phrase behaviour |
|---|
| ю́бка ми́ни | ми́ни | postposed size/style modifier |
|---|
| пла́тье ма́кси | ма́кси | unchanged with neuter head |
|---|
| стиль ре́тро | ре́тро | style label |
|---|
| цвет ха́ки | ха́ки | colour term |
|---|
| но́мер люкс | люкс | class label/apposition |
|---|
| язы́к ко́ми | ко́ми | ethnolinguistic label |
|---|
Agreement reveals an invariant head's profile
An invariant modifier or noun can coexist with ordinary agreeing adjectives that expose the phrase's grammatical features.
- This makes the head/adjective distinction crucial: the invariant word is not copied as an ending model.
- Control point: Case and agreement can be syntactically real even when one component has no inflectional contrast.
- Retrieval checkpoint: Pause and reconstruct the diagnostic forms from the last three lessons without looking, then check what you missed.
3.19 · Agreement reveals an invariant head's profile · table 1
| Phrase | Visible agreement | Invariant element |
|---|
| но́вая ю́бка ми́ни | fem. nom. sg. | ми́ни |
|---|
| в но́вой ю́бке ми́ни | fem. prep. sg. | ми́ни |
|---|
| но́вые пла́тья ма́кси | nom. plural | ма́кси |
|---|
| о но́вых цвета́х ха́ки | prep. plural | ха́ки |
|---|
| совреме́нная ли́тература ко́ми | fem. nom. sg. | ко́ми |
|---|
Substantivised and invariant assessment
Recover the referent and syntactic profile, then decide which word overtly carries agreement.