So far the cases have lived mostly on the noun and its article. But case in Romanian does not stop at the noun — in the genitive-dative it spreads across the whole noun phrase. Demonstratives, the cel-article, and adjectives all change shape to agree with the case of the noun they belong to. "To this man" is not acest om but acestui om; "of that woman" is not acea femeie but acelei femei. This is case concord: every word in the noun phrase that can show case does show case. For an English speaker — whose "this/that" never change for case — this is a genuinely new habit to build, and forgetting it (leaving the determiner in the nominative) is one of the clearest markers of a non-native.
Demonstratives in the genitive-dative
The demonstratives acest/această ("this") and acel/acea ("that") have full gen-dat forms. In the singular they take -ui (masculine/neuter) and -ei (feminine); in the plural, -or for all genders. These mirror exactly the -lui / -ei / -lor pattern of the article — same logic, applied to the determiner.
| Nom-Acc | Gen-Dat | |
|---|---|---|
| "this" masc./neut. sg. | acest (om) | acestui (om) |
| "this" fem. sg. | această (femeie) | acestei (femei) |
| "that" masc./neut. sg. | acel (copil) | acelui (copil) |
| "that" fem. sg. | acea (casă) | acelei (case) |
| "these/those" all genders pl. | acești/acei, aceste/acele | acestor / acelor |
I-am spus acestui om tot adevărul.
I told this man the whole truth. (dative — acestui om)
Părerea acestei femei contează aici.
This woman's opinion matters here. (genitive — acestei femei)
Le-am mulțumit acelor colegi pentru ajutor.
I thanked those colleagues for their help. (dative plural — acelor colegi)
Notice a striking detail: when the demonstrative comes before the noun and carries the case, the noun itself can stay in its plain form — acestui om (the noun om is bare; acestui shows the case). The phrase needs the case marked somewhere, and the leading determiner takes that job.
The cel-article in the genitive-dative
The article-like word cel ("the one," used with superlatives, ordinals, and as a buffer) likewise inflects: celui / celei / celor. You meet these forms constantly in superlatives (cel mai bun → celui mai bun, "to the best") and in counting phrases (cei trei → celor trei, "of/to the three").
I-am dat premiul celui mai bun elev.
I gave the prize to the best student. (dative — celui mai bun)
Casa celor trei frați a fost vândută.
The three brothers' house was sold. (genitive plural — celor trei)
Răspunsul celei mai în vârstă doamne ne-a surprins.
The eldest lady's answer surprised us. (genitive feminine — celei mai în vârstă)
Adjectives agree too
Adjectives that precede the noun take the gen-dat marking; adjectives that follow the noun usually do not need to (the noun's article already carries it), but a preposed adjective absorbs the case. A frequent pattern is the postposed adjective simply agreeing in gender/number while the noun's article holds the case: omului bun ("of the good man"). When the adjective is preposed, it takes the ending: bunului om.
I-am scris bunului meu prieten o scrisoare lungă.
I wrote my good friend a long letter. (preposed adjective bunului takes the dative)
Casa frumoasei femei e la capătul străzii.
The beautiful woman's house is at the end of the street. (preposed adjective frumoasei in the genitive)
Părerea omului bătrân nu trebuie ignorată.
The old man's opinion shouldn't be ignored. (noun-article carries case; postposed adjective bătrân agrees in gender/number)
Possessive and other determiners
The same concord reaches possessive determiners and indefinite determiners. Meu/mea ("my") and friends, and quantifiers like fiecare or tot, fall into line with the case. The practical upshot is general: anything modifying a gen-dat noun must itself be in the gen-dat where it has a form for it.
I-am dat fiecărui copil câte un măr.
I gave each child an apple. (dative — fiecărui copil)
Soarta întregului oraș depindea de acea decizie.
The fate of the whole city depended on that decision. (genitive — întregului oraș)
Why concord exists: marking the phrase, not just the word
The deep logic is that Romanian marks the case of the noun phrase as a unit, and it likes to flag that case early. When the phrase begins with a determiner (acest, cel, fiecare, bun), the case lands on that first word, which is why the determiner inflects and the noun can stay bare (acestui om, not acestui omului). This is the opposite of the English speaker's instinct, where "this" and "that" are frozen. The benefit is redundancy: hearing acestui at the start of a phrase, a listener already knows a gen-dat is coming before the noun even arrives.
Acestui student i-am promis o recomandare.
I promised this student a recommendation. (the case is signaled by acestui at the very start)
Common Mistakes
❌ I-am spus acest om adevărul.
Incorrect — in the dative the demonstrative must inflect: acestui om.
✅ I-am spus acestui om adevărul.
I told this man the truth.
❌ părerea această femeie
Incorrect — the genitive needs the inflected demonstrative and noun: părerea acestei femei.
✅ părerea acestei femei
this woman's opinion
❌ premiul cel mai bun elev (leaving cel uninflected in the dative)
Incorrect — in the dative cel inflects: celui mai bun elev.
✅ premiul celui mai bun elev
the prize of/for the best student
❌ acestor om (number mismatch)
Incorrect — acestor is plural; with a singular noun use acestui: acestui om.
✅ acestui om
of/to this man
❌ fiecare copil i-am dat un măr
Incorrect — fiecare must show the dative: fiecărui copil.
✅ I-am dat fiecărui copil un măr.
I gave each child an apple.
Key Takeaways
- In the genitive-dative, case spreads across the whole noun phrase: demonstratives, the cel-article, adjectives, possessives, and quantifiers all inflect.
- The endings rhyme: -ui (masc./neut. sg.), -ei (fem. sg.), -or (pl.) — same three-way split as the article.
- When a determiner leads the phrase, it carries the case and the noun can stay bare: acestui om = "to this man."
- Leaving a determiner in the nominative (acest om for "to this man") is a clear non-native error — concord is obligatory.
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Start learning Romanian→Related Topics
- Genitive-Dative SyncretismB1 — Why Romanian's genitive and dative are a single form — fetei means both 'the girl's' and 'to the girl' — and how syntax, not morphology, tells you which case you're looking at.
- Case Marking on PronounsB1 — Why Romanian pronouns preserve a far richer case system than nouns — distinct nominative (eu, tu, el), accusative (mă/pe mine, te/pe tine), and dative (îmi/mie, îți/ție) forms, split into clitic and strong sets — and how this is where most of the real case-learning happens.
- The Dative (indirect object, 'to')B1 — The dative marks the recipient or beneficiary of an action ('to/for someone') using the same form as the genitive — with obligatory clitic doubling and a set of verbs whose government you learn one by one.
- Demonstratives: acest/acel (this/that)A2 — Romanian 'this' (acest/această/acești/aceste) and 'that' (acel/acea/acei/acele) agree in gender and number and live in two positions — a short preposed form on a bare noun (acest om) and a long postposed form that forces the definite article onto the noun (omul acesta) — plus the everyday colloquial ăsta/ăla.
- The cel Buffer Article in Complex PhrasesB2 — How cel/cea/cei/cele re-marks definiteness on a modifier that has become detached from its noun — omul cel bătrân ('the old man'), the ordinals cel de-al doilea ('the second'), counting phrases cei trei muschetari ('the three musketeers'), and epithets Ștefan cel Mare ('Stephen the Great'). cel is the buffer that reactivates 'the' on a separated adjective, ordinal, or numeral.
- Case System: Master ReferenceB2 — A consolidating reference with full declension tables for a masculine (băiat), feminine (fată), and neuter (tren) noun across every case — Nominative-Accusative, Genitive-Dative, Vocative — in both indefinite and definite forms, singular and plural, showing that case in Romanian is overwhelmingly carried by the article, not the stem.