An equative says that two things occupy the same point on a scale: the same height, price, speed, importance, or another gradable property. Indonesian commonly expresses this with compact se- + adjective or with the analytic pattern sama + adjective + dengan. A third form, seperti, expresses resemblance and does not by itself guarantee equal degree.
This page explains the comparison patterns rather than cataloguing adjective vocabulary or the full derivational paradigm of se-. Those broader topics are treated on the pages about derived adjectives and the meanings of se-.
Compact equality with se-
Attach se- directly to a suitable scalar adjective, then state the standard of comparison: setinggi Maya “as tall as Maya,” sebesar rumah itu “as big as that house,” and sepenting kesehatan “as important as health.” The prefix turns the adjective into a measure meaning “to the same degree as.”
Sekarang Rina setinggi Maya.
Rina is as tall as Maya now.
Koper ini hampir sebesar bagasi mobil kami.
This suitcase is almost as big as the trunk of our car.
Bagi saya, waktu bersama keluarga sepenting pekerjaan.
For me, time with family is as important as work.
Unlike English as...as, Indonesian compact se- does not need a second word equivalent to the first as. The entire first part is contained in se- + adjective. The comparison standard follows directly, without dengan or daripada.
The base must supply a scale that can sensibly be compared. Height, length, cost, difficulty, beauty, and importance all work readily. Context decides how exact the equality is. Meja ini sepanjang meja itu can report measured equality, while Tas ini sebesar koper itu may be an ordinary visual approximation unless precise measurement matters.
Biaya perbaikannya semahal membeli ponsel baru.
The repair cost is as expensive as buying a new phone.
Tes kedua tidak sesulit tes pertama.
The second test was not as difficult as the first.
Dia bisa berlari secepat saya meskipun membawa ransel.
He/She can run as fast as I can even while carrying a backpack.
The negative tidak se-... normally expresses inequality in the downward direction implied by the adjective: tidak setinggi means “not as tall.” By contrast, tidak sama tinggi merely denies equal height and can require context to reveal who is taller.
The analytic pattern sama + adjective + dengan
The transparent alternative is sama + adjective + dengan + standard. Here sama explicitly states equality and dengan introduces the comparison partner. It is natural in both speech and writing and is particularly useful when the adjective expression is structurally complex.
Sekarang Rina sama tinggi dengan Maya.
Rina is now the same height as Maya.
Versi baru ini sama mudahnya dengan versi lama.
This new version is just as easy as the old version.
Pendapat pelanggan sama penting dengan data penjualan.
Customer opinions are as important as sales data.
The optional -nya in forms such as sama mudahnya dengan packages the quality as a measured degree—roughly “equal in its easiness.” It is common and natural, especially when the comparison is emphasized. The simpler sama mudah dengan also occurs. This page keeps the core pattern visible; nominalized adjectives treats -nya and noun-like adjective expressions more fully.
English uses the same as for noun identity and as...as for adjective degree. Indonesian sama...dengan spans both areas, but an adjective must still occupy the adjective slot: sama tinggi dengan, not merely sama dengan if height is the specific scale being asserted.
Harga tiket daring sama mahalnya dengan harga di loket.
The online ticket price is just as high as the price at the counter.
Karyawan baru itu sama percaya dirinya dengan rekan-rekannya yang lebih senior.
The new employee is as self-confident as her more senior colleagues.
The second example shows why the analytic form is useful: percaya diri is a multiword adjective phrase. Speakers can place it intact between sama and dengan. Trying to make every such expression into a prefixed se- form is not a productive rule.
Equality versus resemblance with seperti
Seperti means “like” or “as” and compares manner, appearance, role, or general resemblance. It does not inherently measure two items at the same point on one adjective scale. Compare these three sentences:
Rina setinggi Maya.
Rina is as tall as Maya.
Rina sama tinggi dengan Maya.
Rina is the same height as Maya.
Rina tinggi seperti Maya.
Rina is tall like Maya.
The first two make height equality central. The third groups Rina and Maya as tall people; their exact heights may differ. In many real conversations the distinction is not mathematically strict, but the grammar still presents different relations: scalar equality with se- or sama...dengan, resemblance with seperti.
Seperti is also the clear choice when no single adjective scale is intended.
Anak itu berbicara seperti ibunya ketika sedang serius.
That child speaks like his mother when he is being serious.
Awan sore ini terlihat seperti kapas.
This afternoon's clouds look like cotton.
Neither sentence claims equality in one measurable property. They evoke a resemblance in behavior or appearance.
Choosing between se- and sama...dengan
Compact se- is elegant with familiar, simple scalar bases and works especially well in concise comparisons: setinggi, sebesar, secepat, semurah, seindah. Analytic sama...dengan is more explicit and accommodates long phrases: sama penuh perhatian dengan, sama percaya diri dengan, sama sulit dipahami dengan.
This is a difference in productivity and structure, not a difference between “correct” and “incorrect.” Some prefixed forms are lexically well established, while others can sound creative or difficult to parse. There is no reason to force a compact form when the analytic one is clear.
Kafe di sudut itu tidak seramai biasanya.
The café on the corner is not as busy as usual.
Penjelasan kedua sama sulit dipahami dengan penjelasan pertama.
The second explanation is as difficult to understand as the first.
Words can intervene before the equative to qualify it: hampir setinggi “almost as tall,” tidak semahal “not as expensive,” and persis sama panjang dengan “exactly as long as.” These modifiers reveal whether the speaker means approximation or exact equality.
Rak baru itu persis sama panjang dengan dinding belakang.
The new shelf is exactly as long as the back wall.
Common Mistakes
Writing the productive prefix separately
❌ Adik saya se tinggi saya.
Incorrect — productive se- attaches to the adjective base.
✅ Adik saya setinggi saya.
My younger sibling is as tall as I am.
Adding daripada after a se- equative
❌ Kamar ini sebesar daripada kamar itu.
Incorrect — daripada marks a comparative standard, not the standard after se-.
✅ Kamar ini sebesar kamar itu.
This room is as big as that room.
Using the wrong connector with sama
❌ Kamar ini sama besar daripada kamar itu.
Incorrect — the sama equative takes dengan.
✅ Kamar ini sama besar dengan kamar itu.
This room is the same size as that room.
Forcing se- onto a multiword adjective
❌ Dita sepenuh percaya diri kakaknya.
Incorrect — se- has been forced onto the multiword phrase penuh percaya diri.
✅ Dita sama percaya dirinya dengan kakaknya.
Dita is as self-confident as her older sibling.
Using seperti for exact scalar equality
❌ Tali ini panjang seperti tali itu, persis dua meter.
Incorrect for the intended exact claim — seperti only states resemblance.
✅ Tali ini sama panjang dengan tali itu, persis dua meter.
This rope is the same length as that one, exactly two meters.
Key Takeaways
- Attached se- + adjective compactly measures equality on one scale.
- Sama + adjective + dengan states the same relation analytically and handles complex adjective phrases well.
- Seperti expresses resemblance, not necessarily equal degree.
- Use dengan after sama, but place the comparison standard directly after a se- adjective.
- Do not assume that every multiword adjective can freely take se-.
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