The Russian language is renowned for its complexity, particularly when it comes to grammar. One of the most intricate aspects is the declension of adjectives, which involves changing the form of an adjective to agree with the noun it modifies in terms of gender, number, and case. This system is essential for conveying precise meanings and relationships between words in a sentence.
Unlike English, where adjectives remain unchanged regardless of the noun they describe, Russian adjectives must be adapted to fit the grammatical context. Understanding the declension of adjectives is crucial for anyone wishing to master the Russian language. It not only enhances one’s ability to communicate effectively but also deepens comprehension of the language’s structure.
In this article, we will explore the declension of the adjective ‘третий’, meaning ‘third’, across various genders and cases, providing a comprehensive guide for learners at all levels. NLS in Oslo now offers comprehensive Russian language courses for all levels. Register today.
Table of Contents
ToggleSummary
- The declension of adjectives in Russian is an important aspect of grammar that affects how adjectives change according to gender, number, and case.
- The basic forms of the adjective ‘третий’ (third) in Russian are important to understand in order to properly decline it in different contexts.
- When declining ‘третий’ in the masculine gender, it changes according to the case and number of the noun it describes.
- Declining ‘третий’ in the feminine gender also requires attention to the case and number of the noun it modifies.
- Understanding the declension of ‘третий’ in the neuter gender is essential for using the adjective correctly in Russian sentences.
The Basic Forms of the Adjective ‘третий’ (third)
The adjective ‘третий’ serves as a cardinal numeral in Russian, indicating the position of an item within a sequence. Its basic form is ‘третий’, which is used primarily in the masculine singular nominative case. However, like all Russian adjectives, ‘третий’ undergoes changes depending on the gender and number of the noun it modifies.
The feminine form is ‘третья’, while the neuter form is ‘третье’. In plural contexts, it takes on the form ‘третьи’. These variations are not merely cosmetic; they are essential for grammatical accuracy.
For instance, when describing a masculine noun such as ‘стол’ (table), one would say ‘третий стол’ (the third table). Conversely, when referring to a feminine noun like ‘книга’ (book), one would use ‘третья книга’ (the third book). Understanding these basic forms lays the groundwork for mastering more complex declensions and usages.
Declension of ‘третий’ in the Masculine Gender

In the masculine gender, ‘третий’ follows a specific pattern of declension that aligns with the rules governing masculine adjectives in Russian. In the nominative case, it remains as ‘третий’. However, as one moves through the various cases—genitive, dative, accusative, instrumental, and prepositional—the form of ‘третий’ changes accordingly.
For example, in the genitive case, which indicates possession or absence, ‘третий’ becomes ‘третьего’. This form would be used in a sentence like “У меня нет третьего стола” (I do not have the third table). In the dative case, used to indicate the indirect object of a sentence, it changes to ‘третьему’, as in “Я даю книгу третьему студенту” (I am giving the book to the third student).
Each case serves a distinct purpose and requires careful attention to ensure proper usage.
Declension of ‘третий’ in the Feminine Gender
When dealing with feminine nouns, ‘третий’ transforms into ‘третья’. This change is crucial for maintaining grammatical agreement between adjectives and nouns. In the nominative case, one would say “третья книга” (the third book).
As with masculine nouns, this adjective must also be declined according to its grammatical case. In the genitive case, ‘третья’ becomes ‘третьей’, as seen in “У меня нет третьей книги” (I do not have the third book). The dative case sees it change to ‘третьей’ as well, which can be illustrated with “Я даю книгу третьей студентке” (I am giving the book to the third female student).
The consistent application of these rules is vital for effective communication and understanding in Russian.
Declension of ‘третий’ in the Neuter Gender
The neuter form of ‘третий’, which is ‘третье’, follows its own declension pattern. In the nominative case, it remains unchanged as ‘третье’, applicable when describing neuter nouns such as ‘окно’ (window). For example, one might say “третье окно” (the third window).
As we progress through the cases, ‘третье’ transforms in a manner similar to its masculine and feminine counterparts. In the genitive case, it becomes ‘третьего’, as in “У меня нет третьего окна” (I do not have the third window). The dative case changes it to ‘третьему’, which can be used in a sentence like “Я показываю третьему окну” (I am showing it to the third window).
Understanding these nuances is essential for anyone aiming to achieve fluency in Russian.
Declension of ‘третий’ in the Plural Form

When discussing multiple items or subjects, ‘третий’ takes on its plural form: ‘третьи’. This form is used regardless of gender when referring to groups. In the nominative case, one would say “третьи книги” (the third books) when talking about several books.
As with singular forms, plural adjectives must also be declined according to their grammatical cases. In the genitive case, ‘третьи’ becomes ‘третьих’, as illustrated by “У меня нет третьих книг” (I do not have the third books). The dative case sees it change to ‘третьим’, which can be used in a sentence like “Я даю книги третьим студентам” (I am giving books to the third students).
Mastery of these plural forms is crucial for effective communication in various contexts.
Irregularities in the Declension of ‘третий’
While many adjectives in Russian follow predictable patterns of declension, some exhibit irregularities that can pose challenges for learners. However, ‘третий’ is relatively straightforward compared to other adjectives. Its forms are consistent across genders and cases, making it easier to grasp for those familiar with basic declension rules.
Nonetheless, learners should remain vigilant about potential pitfalls. For instance, confusion may arise when using ‘третий’ with nouns that have irregular declensions themselves. It is essential to remember that while ‘третий’ maintains its forms consistently, its application must always align with the noun’s gender and case.
This awareness will help prevent common mistakes and enhance overall fluency.
Adjective Agreement with Nouns in Russian
A fundamental principle of Russian grammar is that adjectives must agree with their corresponding nouns in gender, number, and case. This agreement is crucial for clarity and coherence in communication. For example, when using ‘третий’, one must ensure that it matches not only in gender but also in number and case with the noun it modifies.
This principle extends beyond just adjectives; it encompasses all modifiers within a sentence. For instance, if one were to say “третий стол” (the third table), both words must align in terms of gender and number. If we switch to a feminine noun like “книга”, we would say “третья книга”.
This agreement is vital for constructing grammatically correct sentences and conveying precise meanings.
Using ‘третий’ in Different Cases and Prepositions
The versatility of ‘третий’ allows it to be employed across various cases and prepositional phrases within sentences. Each case serves a unique function and alters how we use this adjective. For instance, when using prepositions that require specific cases—such as в (in), на (on), or с (with)—the form of ‘третий’ must change accordingly.
In a sentence like “Я живу на третьем этаже” (I live on the third floor), we see how ‘третий’ adapts to fit within a prepositional phrase. Here, it takes on its appropriate form based on both its position within the sentence and its relationship with other words. Mastering these nuances will significantly enhance one’s ability to communicate effectively in Russian.
Common Phrases and Expressions with ‘третий’
The adjective ‘третий’ appears frequently in everyday Russian expressions and phrases. Understanding these common usages can greatly aid learners in both comprehension and conversation. For example, phrases like “на третьем месте” (in third place) or “в третий раз” (for the third time) are often encountered in various contexts.
Additionally, incorporating such phrases into one’s vocabulary can facilitate smoother interactions with native speakers. By recognising how ‘третий’ functions within these expressions, learners can enhance their fluency and confidence when engaging in conversations or reading texts.
Practice Exercises for Declension of ‘третий’
To solidify understanding of the declension patterns associated with ‘третий’, engaging in practice exercises is highly beneficial. Learners can create sentences using different forms of ‘третий’ across various cases and genders. For instance, they might practice transforming sentences from singular to plural or switching between masculine and feminine forms.
Another effective exercise involves filling in blanks with the correct form of ‘третий’ based on context clues provided within sentences. This hands-on approach not only reinforces grammatical rules but also builds confidence in using adjectives correctly within conversational settings. In conclusion, mastering the declension of adjectives such as ‘третий’ is an essential step for anyone learning Russian.
The ability to adapt adjectives according to gender, number, and case enhances clarity and precision in communication. For those seeking structured guidance in their language journey, consider enrolling in Russian courses at NLS Norwegian Language School in Oslo. With expert instructors and tailored programmes designed for various proficiency levels, NLS offers an excellent opportunity to deepen your understanding of Russian grammar while immersing yourself in a supportive learning environment.
Whether you are a beginner or looking to refine your skills further, NLS provides a comprehensive approach that will undoubtedly aid you on your path to fluency in Russian.





