Adjectives in Indonesian

In Brief

Indonesian adjectives usually come after the noun they describe: mobil baru means “a new car.” An adjective can also be the predicate (the part that says what the subject is like) without a word for “is” or “are”: Mobil itu baru means “That car is new.” Put sangat before an adjective or sekali after it to mean “very.”

Overview

An adjective is a describing word such as “big,” “new,” “hot,” or “delicious.” In Indonesian, this category is called kata sifat or adjektiva. Adjectives do not change for singular and plural, gender, or grammatical person. The same form baru can describe one new item, several new items, a man, or a woman.

The main A1 challenge is word order. English normally puts an adjective before a noun, but Indonesian usually uses noun + adjective: rumah besar, literally “house big.” Indonesian also does not normally insert a linking verb—the English “is,” “am,” or “are”—before a predicate adjective. Compare Hari ini panas with “Today is hot.”

These two patterns appear constantly in descriptions, shopping, food conversations, introductions, and comments about the weather. Once they feel natural, you can add negation and degree words to express “not expensive,” “very good,” “rather small,” and “too hot.”

How It Works

1. Describing a noun: noun + adjective

When an adjective belongs inside a noun phrase (a group of words built around a person, place, thing, or idea), it normally follows the noun.

Pattern	Indonesian	English
noun + adjective	mobil baru	a new car
noun + adjective	kopi panas	hot coffee
noun + adjective	jalan panjang	a long road
noun + adjective	anak pintar	a clever child

Do not copy English order: baru mobil is not the ordinary way to say “new car.” Words placed before nouns can have other functions, so the dependable beginner pattern is thing first, description second.

Indonesian has no required equivalent of English “a” or “the.” Consequently, rumah besar can be translated as “a big house” or “the big house,” depending on context. If a demonstrative such as ini (“this”) or itu (“that”) identifies the noun, it normally comes after the adjective:

• rumah besar itu — that big house
• tas hitam ini — this black bag
• makanan enak itu — that delicious food

The useful order is:

noun + adjective + ini/itu

2. Making a complete description: subject + adjective

An adjective can form the predicate of a sentence. A predicate tells you something about the subject; here, it says what the subject is like. In a simple present-time description, Indonesian normally needs no copula (a linking verb like English “be”).

Indonesian structure	Indonesian	Natural English
subject + adjective	Makanan ini enak.	This food is delicious.
subject + adjective	Kamar saya kecil.	My room is small.
subject + adjective	Dia ramah.	He/She is friendly.
time/topic + adjective	Hari ini panas.	Today is hot.

This is not a shortened or careless pattern. It is an ordinary complete Indonesian sentence. Adding adalah merely because English uses “is” is usually unnatural before a basic adjective.

Word order helps distinguish a noun phrase from a sentence:

• rumah besar — a big house (often a phrase)
• Rumah itu besar. — That house is big (clearly a sentence)

Capitalization, punctuation, intonation, and context also matter. In brief labels, headlines, or conversation, Rumah besar could be understood predicatively, but Rumah itu besar is clearer for beginners.

3. Negating an adjective with tidak

Use tidak before an adjective to say “not.”

subject + tidak + adjective

• Kopinya tidak panas. — The coffee is not hot.
• Soal ini tidak sulit. — This question is not difficult.
• Hotel itu tidak mahal. — That hotel is not expensive.

Use tidak, not bukan, for neutral adjective negation. Bukan mainly rejects an identity or category (“is not a doctor,” “is not my bag”). It can appear before an adjective in a marked correction or contrast, but that is not the basic pattern.

4. Saying how strong a quality is

Degree words show intensity. Their position is important.

Meaning	Pattern	Example	Translation
very	sangat + adjective	sangat panas	very hot
very	adjective + sekali	bagus sekali	very good
quite/rather	cukup + adjective	cukup besar	quite big / big enough
somewhat/rather	agak + adjective	agak mahal	rather expensive
too/excessively	terlalu + adjective	terlalu manis	too sweet
less/not very	kurang + adjective	kurang jelas	unclear / not clear enough

Sangat comes before the adjective, while intensifying sekali comes after it:

• sangat enak
• enak sekali

For the basic meaning “very delicious,” avoid treating them as one frame: sangat enak sekali is common as emphatic speech, but it is redundant in careful neutral style. Learn one intensifier at a time first.

Be careful with English translation. Cukup besar may mean “quite big” or “big enough,” depending on the situation. Kurang bagus literally presents the quality as insufficient and often serves as a softer, more tactful way to say “not very good.”

5. No agreement and usually no number marking

Indonesian adjectives keep one form. There is no ending to match the noun.

• seorang anak pintar — a clever child
• anak-anak pintar — clever children
• seorang guru ramah — a friendly teacher
• guru-guru ramah — friendly teachers

The noun may be marked as plural when needed, but pintar and ramah do not change. Often context already makes number clear, so even the noun does not need reduplication (repetition): tiga rumah besar means “three big houses,” not tiga rumah-rumah besar in ordinary standard usage.

Examples in Context

Indonesian	English	Note
Saya mencari kamar murah.	I’m looking for a cheap room.	Adjective follows the noun.
Mereka membeli mobil baru.	They bought a new car.	Baru does not change form.
Tas hitam ini milik saya.	This black bag is mine.	Order: noun + adjective + ini.
Makanan ini enak.	This food is delicious.	Predicate adjective; no “is.”
Rumah itu besar.	That house is big.	Clear subject + adjective sentence.
Adik saya pemalu.	My younger sibling is shy.	A description of a person.
Hari ini sangat panas.	Today is very hot.	Sangat precedes the adjective.
Pemandangannya indah sekali.	The view is very beautiful.	Sekali follows the adjective.
Sup ini terlalu asin.	This soup is too salty.	Terlalu expresses excess.
Kamarnya agak gelap.	The room is rather dark.	Agak softens the description.
Penjelasannya cukup jelas.	The explanation is quite clear.	Cukup can indicate a sufficient degree.
Film itu tidak panjang.	That film is not long.	Tidak negates the adjective.
Hasilnya kurang bagus.	The result is not very good.	Often softer than a blunt negative judgment.
Bagus sekali!	Very good!	The subject can be omitted when obvious.

The ending -nya in examples such as kamarnya and hasilnya can indicate “the room” or “the result” already understood from context, or possession such as “his/her room.” Its exact translation depends on the conversation; it does not change the adjective rule.

Common Mistakes

Putting the adjective before the noun

• Wrong: baru mobil
• Right: mobil baru
• Why: In an ordinary Indonesian noun phrase, the noun comes first and its adjective follows. English encourages the opposite order.

Adding adalah before every predicate adjective

• Wrong: Makanan ini adalah enak.
• Right: Makanan ini enak.
• Why: Indonesian adjective predicates normally stand directly after the subject. There is no required equivalent of English “is.”

Putting sekali in the wrong position

• Wrong: sekali bagus
• Right: bagus sekali or sangat bagus
• Why: Intensifying sekali follows the adjective; sangat precedes it.

Using bukan for ordinary adjective negation

• Wrong: Kopi ini bukan panas.
• Right: Kopi ini tidak panas.
• Why: Use tidak to negate a quality. Bukan normally rejects a noun identity or creates an explicit contrast.

Translating “too” as “very”

• Wrong for “The bag is very expensive”: Tas itu terlalu mahal.
• Right: Tas itu sangat mahal. / Tas itu mahal sekali.
• Why: Terlalu means the degree is excessive: the bag is too expensive, not merely very expensive.

Trying to make the adjective plural

• Wrong: tiga rumah besar-besar (for the neutral meaning “three big houses”)
• Right: tiga rumah besar
• Why: The number already marks plurality, and adjectives do not require plural agreement. Adjective repetition can have expressive meanings, but it is not normal agreement.

Usage Notes

In everyday Indonesian, short adjective comments are extremely natural. If the subject is visible or already known, speakers may simply say Enak! (“Delicious!”), Mahal! (“Expensive!”), or Panas sekali! (“So hot!”). English also permits some exclamations without a subject, but Indonesian uses predicate adjectives without “be” even in full sentences.

Sangat is neutral and works well in speech and writing. Sekali is also widespread and often sounds lively in reactions. Amat is another pre-adjective intensifier meaning “very”; it is common in more formal or literary wording but is not restricted to it. In casual conversation, speakers also use banget after an adjective—enak banget (“really delicious”). Banget is informal, so prefer sangat or sekali in formal writing unless you deliberately want a conversational voice.

Adjectives can describe temporary conditions as well as lasting qualities. Dia sibuk may mean “He/She is busy,” while Dia ramah means “He/She is friendly.” Indonesian does not need different adjective forms for these meanings. Time expressions and context do the work: Kemarin dia sibuk (“Yesterday he/she was busy”) and Besok dia sibuk (“Tomorrow he/she is busy”).

Beyond the Basics / Advanced Use

You do not need to master the following patterns at A1, but you will encounter them later.

Linking a longer description with yang

Yang can introduce a description that identifies a noun, similar to “the one that is…” or a relative clause (a clause that describes a noun):

• Saya mau baju yang biru. — I want the blue shirt / the one that is blue.
• Pilih kamar yang lebih besar. — Choose the room that is bigger.

Compare baju biru (“a blue shirt”), a simple noun + adjective phrase, with baju yang biru, where the color is singled out as the identifying description. The version with yang may sound more contrastive: the blue one, not another one.

Adjectives used like nouns

With yang, an adjective can refer to “the … one” without repeating the noun:

• Yang kecil lebih murah. — The small one is cheaper.
• Saya pilih yang merah. — I’ll choose the red one.

This is especially useful while shopping or comparing visible choices.

Expressive repetition

Adjectives may be repeated for emphasis, distribution, or an expressive sense, but this is not grammatical agreement with a plural noun. For example, buahnya besar-besar suggests that the fruits are all impressively big. The exact effect depends on context and speech style. Beginners should continue using the unrepeated adjective in neutral descriptions: buah besar or buah-buah itu besar.

Contrast with comparisons

Degree and comparison are related but different. Sangat cepat means “very fast”; lebih cepat daripada… means “faster than…”; and paling cepat means “fastest.” These comparison patterns build directly on the unchanged adjective and are treated as a separate A2 topic.

Practice Tips

1. Reverse English noun phrases. Take ten everyday pairs such as “hot tea,” “new phone,” and “small room.” Say the thing first: teh panas, telepon baru, kamar kecil. Add ini or itu only after the adjective.
2. Make two sentences from each adjective. For mahal, produce a noun phrase (restoran mahal, “an expensive restaurant”) and a predicate sentence (Restoran itu mahal, “That restaurant is expensive”). This trains the difference between describing a noun and making a statement.
3. Use an intensity ladder. Practice one adjective with tidak, kurang, agak, cukup, sangat, and terlalu: tidak panas, kurang panas, agak panas, cukup panas, sangat panas, terlalu panas. Notice that these expressions are not perfect mathematical steps; context determines their natural translation.

Related Concepts

• Prerequisite: Basic Verb Structure — introduces Indonesian predicates and how time is often shown through context rather than changing the main word.
• Next step: Basic Adverbs — expands degree and other modifiers such as sangat, terlalu, juga, and hanya.
• Next step: Colors — applies the noun + adjective pattern to common color words.
• Next step: Comparison — builds comparative and superlative meanings with lebih, daripada, and paling.
• Later topic: Exclamations and Emphasis — develops expressive patterns with sekali, benar-benar, betapa, and alangkah.