After an indefinite Arabic noun, a relative meaning is normally expressed by a clause attached directly to that noun: رجل يعمل هنا “a man who works here,” رسالة وصلت أمس “a message that arrived yesterday.” There is no الذي/التي. Traditional grammar calls this a sentence functioning as an adjective, جملة صفة.
English uses who, which, or that after both definite and indefinite nouns. Arabic makes a sharper architectural choice: a definite antecedent takes an agreeing relative pronoun, while an indefinite antecedent takes an asyndetic—unlinked—adjective clause. “Asyndetic” means that no separate connecting word appears; it does not mean that internal pronouns and prepositions may be left incomplete. Compare the marked architecture on Relative Clauses with Definite Antecedents.
The core definite–indefinite contrast
| Antecedent | Arabic structure | Meaning |
|---|---|---|
| definite masculine singular | الرجل الذي يعمل هنا | the man who works here |
| indefinite masculine singular | رجل يعمل هنا | a man who works here |
| definite feminine singular | الشركة التي توظف الخريجين | the company that hires graduates |
| indefinite feminine singular | شركة توظف الخريجين | a company that hires graduates |
| definite dual | المهندسان اللذان وصلا | the two engineers who arrived |
| indefinite dual | مهندسان وصلا | two engineers who arrived |
دخل رجل يحمل حقيبة سوداء.
dakhala rajulun yaḥmilu ḥaqībatan sawdāʾ.
A man carrying a black bag came in.
وصلت رسالة تؤكد موعد المقابلة.
waṣalat risālatun tuʾakkidu mawʿida l-muqābala(h).
A message confirming the interview time arrived.
In both examples, the indefinite noun introduces a new participant. The following verb clause describes it just as an ordinary indefinite adjective would. There is no hidden need to insert الذي merely because English has a relative word.
The antecedent as the clause subject
The simplest indefinite adjective clause treats the antecedent as its understood subject. The verb agrees with that referent according to the normal rules of Arabic clause order.
نبحث عن شقة تطل على البحر.
nabḥathu ʿan shaqqatin tuṭillu ʿalā l-baḥr.
We are looking for an apartment that overlooks the sea.
تقدمت طالبتان تجيدان البرمجة.
taqaddamat ṭālibatāni tujīdāni l-barmaja(h).
Two female students who are proficient in programming applied.
The dual is not erased just because the clause has no relative pronoun. طالبتان is nominative dual, and the following subject-initial interpretation selects dual feminine تجيدان. With a plural human antecedent, use human plural agreement; with a nonhuman plural, the clause normally begins with feminine singular agreement.
اشترينا أجهزة تستهلك طاقة أقل.
ʾishtaraynā ʾajhizatan tastahliku ṭāqatan ʾaqall.
We bought devices that consume less energy.
Nonhuman plural أجهزة takes feminine singular تستهلك. The absence of التي does not suspend Arabic agreement.
The antecedent as an object
When the antecedent is the direct object inside its descriptive clause, Arabic commonly uses an attached resumptive pronoun. This makes the link explicit.
شاهدت فيلما رشحه لي صديق.
shāhadtu fīlman rashshaḥahu lī ṣadīq.
I watched a film that a friend recommended to me.
The suffix ـه on رشحه resumes masculine فيلما. In some direct-object relatives, especially where the relationship is unambiguous, formal Arabic also allows a surface gap. That limited option does not turn English deletion into a general Arabic strategy; an explicit suffix is usually clearer for learners and readers.
أحتاج إلى وثيقة أرسلتها لك الأسبوع الماضي.
ʾaḥtāju ʾilā wathīqatin ʾarsaltuhā laka l-ʾusbūʿa l-māḍī.
I need a document that I sent you last week. (One male addressee.)
Here ـها links أرسلتها to feminine وثيقة. Notice that the clause still has no التي because the antecedent is indefinite.
Prepositional and possessive links remain obligatory
An asyndetic clause has no relative pronoun, but a preposition inside it still needs an object. Attach the appropriate suffix.
وجدنا فندقا يمكننا العمل فيه بهدوء.
wajadnā funduqan yumkinunā l-ʿamalu fīhi bi-hudūʾ.
We found a hotel where we can work quietly.
The suffix in فيه resumes فندقا. English can say a hotel we can work in and leave in without an object; formal Arabic cannot leave في bare.
قابلت صحفية أقرأ مقالاتها منذ سنوات.
qābaltu ṣaḥafiyyatan ʾaqraʾu maqālātihā mundhu sanawāt.
I met a journalist whose articles I have been reading for years.
Possessive ـها on مقالاتها links the articles to صحفية. Without it, the clause would merely say “I read articles,” leaving no grammatical connection equivalent to English whose.
Demonstratives reveal which structure you have
A demonstrative followed by an indefinite noun is normally a verbless sentence whose predicate is that noun: هذا كتاب “this is a book.” The indefinite predicate can then take an adjective clause directly.
هذا تطبيق يساعدك على تنظيم مواعيدك.
hādhā taṭbīqun yusāʿiduka ʿalā tanẓīmi mawāʿīdika.
This is an app that helps you organize your appointments. (One male addressee.)
A demonstrative plus a definite noun instead forms one definite antecedent and therefore selects الذي/التي.
هذا التطبيق الذي اقترحته يعمل بلا اتصال بالإنترنت.
hādhā t-taṭbīqu lladhī qtaraḥtahu yaʿmalu bi-lā ttiṣālin bi-l-ʾintarnit.
This app that you suggested works without an internet connection. (One male addressee.)
The near/far contrast does not change the architecture:
ذلك مطعم يقدم أطباقا نباتية، أما هذا المطعم الذي نعرفه فيقدم أطباقا بحرية.
dhālika maṭʿamun yuqaddimu ʾaṭbāqan nabātiyyatan, ʾammā hādhā l-maṭʿamu lladhī naʿrifuhu fa-yuqaddimu ʾaṭbāqan baḥriyya(h).
That is a restaurant that serves vegetarian dishes, whereas this restaurant that we know serves seafood.
مطعم after ذلك is indefinite, so يقدم follows directly. هذا المطعم is definite, so its clause begins with الذي.
Adjective clause or circumstantial clause?
Definiteness can change how a bare clause is interpreted. After an indefinite noun, a following clause naturally describes which kind of noun it is: دخل رجل يضحك “a man who was laughing came in.” After a definite noun, the same bare clause is commonly circumstantial: دخل الرجل يضحك “the man came in laughing.” To make it a relative clause after the definite noun, add الذي: دخل الرجل الذي يضحك “the man who is laughing came in.”
خرج طفل يبكي من العيادة.
kharaja ṭiflun yabkī mina l-ʿiyāda(h).
A child who was crying came out of the clinic.
خرج الطفل يبكي من العيادة.
kharaja ṭ-ṭiflu yabkī mina l-ʿiyāda(h).
The child came out of the clinic crying.
This contrast shows why الذي cannot be treated as a decorative translation of English that. It marks the architecture of a definite relative clause; without it, a clause after a definite noun may receive a different syntactic interpretation.
From new information to a discourse topic
Indefinite adjective clauses often introduce a participant. A later sentence can retrieve that participant with a definite demonstrative phrase.
اتصلت بنا شركة تطور برامج تعليمية. هذه الشركة تبحث عن مترجمين.
ʾittaṣalat binā sharikatun tuṭawwiru barāmija taʿlīmiyya(h). hādhihi sh-sharikatu tabḥathu ʿan mutarjimīn.
A company that develops educational software contacted us. This company is looking for translators.
The first mention is indefinite and takes an unmarked clause. Once the company is established, هذه الشركة is definite and becomes the discourse topic.
Common Mistakes
Adding الذي after an indefinite noun
❌ قابلت مهندسة التي تعمل في الطاقة الشمسية.
Incorrect — indefinite muhandisa takes its adjective clause directly, without allatī.
✅ قابلت مهندسة تعمل في الطاقة الشمسية.
qābaltu muhandisatan taʿmalu fī ṭ-ṭāqati sh-shamsiyya(h).
I met an engineer who works in solar energy.
Treating هذا الكتاب like هذا كتاب
❌ هذا الكتاب يشرح القاعدة.
Incorrect for the intended meaning “This is a book that explains the rule”; this actually means “This book explains the rule.”
✅ هذا كتاب يشرح القاعدة بأمثلة واضحة.
hādhā kitābun yashraḥu l-qāʿidata bi-ʾamthilatin wāḍiḥa(h).
This is a book that explains the rule with clear examples.
Ignoring dual agreement inside the clause
❌ حضر موظفان يعمل في قسم المبيعات.
Incorrect — the two employees are the subject of the descriptive clause, so the verb must be dual.
✅ حضر موظفان يعملان في قسم المبيعات.
ḥaḍara muwaẓẓafāni yaʿmalāni fī qismi l-mabīʿāt.
Two employees who work in the sales department attended.
Stranding a preposition
❌ أبحث عن زميل أسافر مع.
Incorrect — maʿ needs a suffix that resumes the indefinite antecedent zamīl.
✅ أبحث عن زميل أسافر معه.
ʾabḥathu ʿan zamīlin ʾusāfiru maʿahu.
I am looking for a colleague to travel with.
Omitting a possessive link
❌ استأجرنا شقة نوافذ تطل على الحديقة.
Incorrect for “an apartment whose windows overlook the garden”; nawāfidh needs a suffix linking the windows to the apartment.
✅ استأجرنا شقة نوافذها تطل على الحديقة.
ʾistaʾjarnā shaqqatan nawāfidhuhā tuṭillu ʿalā l-ḥadīqa(h).
We rented an apartment whose windows overlook the garden.
Key Takeaways
- An indefinite antecedent takes a directly attached adjective-like clause without الذي/التي.
- The clause still obeys ordinary gender, number, and human/nonhuman agreement.
- Direct-object resumptives are common and may sometimes be omitted; prepositional and possessive resumptives are obligatory.
- هذا كتاب يشرح... has an indefinite predicate; هذا الكتاب الذي يشرح... has a definite antecedent.
- After a definite noun, a bare clause may be circumstantial rather than relative, so definiteness changes interpretation as well as form.
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Start learning Arabic →Related Topics
- Relative Clauses with Definite AntecedentsA2 — Build relative clauses after definite Arabic nouns with an agreeing relative pronoun and the right internal resumptive link.
- Resumptive Pronouns inside Relative ClausesA2 — Use Arabic pronoun suffixes to reconnect a relative clause to an antecedent in object, possessive, and prepositional positions.
- Near Demonstratives: هذا، هذه، هذان، هاتان، هؤلاءA1 — Choose near demonstratives by gender, number, case, and human reference, then combine them with definite nouns and relative clauses.