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Master Arabic verb patterns & morphology

Adjectives & description — Arabic Grammar

🎨 Adjective Agreement: The Grammatical Mirror

In Arabic, an adjective (النعت) doesn't just describe a noun; it acts as a grammatical mirror. In formal MSA, it normally reflects the noun's grammatical features across four dimensions: definiteness, gender, number, and case. These agreement patterns are central because mismatches are among the most visible errors in learner writing.

The Ruleset & Syntax Guidelines

  • Definiteness-Sensitive: If the noun is definite (has "Al-"), the adjective must be definite. If indefinite, the adjective is indefinite.
  • Gender and Number: The adjective matches the noun in being masculine/feminine and singular/dual/plural.
  • The "Non-Human Plural" Wrinkle: When dealing with plural objects or animals (broken or sound plurals), the adjective normally takes the singular feminine form. Do not over-generalize human plural rules to objects.

Learning Hub tip

Color-code noun features and mirror them on the adjective in drills. Always ask: Is this plural human or non-human?

📝 Analytical Examples

الْكِتَابُ الْجَدِيدُ (Al-kitābu l-jadīdu) - The new book
Analysis: Here, both words are definite (they possess the "Al-" prefix) and both end in the nominative "-u" (Damma) case, indicating they are a phrase.
Academic Note: Notice how the adjective strictly follows the noun in both definiteness (Al-) and case endings; an indefinite adjective here would incorrectly turn the phrase into a complete nominal sentence.

كُتُبٌ جَدِيدَةٌ (Kutubun jadīdatun) - New books
Analysis: "Kutub" is a broken plural for a non-human object (books). Therefore, the adjective "jadīdatun" applies the "wrinkle" rule: it takes the singular feminine form.
Academic Note: Over-generalizing human plural rules to non-human objects is a frequent beginner error; mastering this non-human plural agreement is essential.

Related Vocabulary

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