Which Is More Important: Formal or Informal Indonesian?
Many learners focus exclusively on colloquial Indonesian and find it sufficient for everyday communication. And yes—being able to communicate is, of course, one of the main goals of learning any language.
However, without a solid foundation in formal Indonesian, learners cannot read books or newspapers, nor can they fully understand television or radio news. Even worse, they may unknowingly embarrass themselves or come across as impolite or disrespectful in certain social or professional situations.
What Exactly Is “Colloquial Indonesian”?
Colloquial Indonesian refers to various Malay-based varieties spoken informally across Indonesia. For example, Papuan Malay (bahasa Papua) is widely used alongside local languages in Papua, Manado Malay (bahasa Manado) is common in North Sulawesi, and Betawi Malay (bahasa Jakarta) dominates in Jakarta.
Jakarta Malay, in particular, has gained nationwide popularity thanks to its frequent use in films, TV shows, and soap operas. When people talk about “colloquial Indonesian,” they are often actually referring to Jakarta Malay (bahasa Jakarta).
How Different Is Formal Indonesian from Colloquial Indonesian?
The differences between formal and colloquial Indonesian are substantial. They vary in vocabulary, pronunciation, and sentence structure—sometimes to the point that they function almost like two different languages. Still, they share many core features, since both are based on Malay.
Importantly, there is no strict boundary between formal and informal Indonesian. In real life, speakers move along a continuum, blending the two and choosing styles that range from very colloquial to relaxed formal—and, in writing, sometimes fully formal.
How Can I Learn Both Colloquial and Formal Indonesian?
Indonesian Online courses teach both formal and colloquial Indonesian in a structured and practical way. Words that belong exclusively to formal language are clearly marked, as are those used only in informal contexts. This approach helps learners move confidently and naturally between different language styles.
Could Using Colloquial Indonesian Sound Rude?
Absolutely. Using colloquial Indonesian in the wrong situation can easily lead to awkward or embarrassing moments. For example, addressing your university rector with a phrase like “Gue suka banget ame lu” (“I like you very much” in very colloquial language) would almost certainly make everyone present cringe.
To avoid such mistakes, our courses do not teach expressions that can easily sound rude or inappropriate when used incorrectly. Instead, we guide you step by step—from relaxed formal Indonesian, which works well in most situations, to more colloquial and more formal levels—so you always know what is appropriate to say.
Is Colloquial Indonesian the Same as Slang?
This is a common misconception, but it is not correct. Slang refers to very informal language that is usually limited to specific groups or situations. Colloquial Indonesian can certainly include slang, but describing all colloquial Indonesian as “slang” is misleading and oversimplifies how the language is actually used.
Do People Always Use Colloquial Indonesian When They Speak?
Many Indonesians will say, “Of course, nobody speaks formal Indonesian,” but that is not entirely true. Jakarta-style Indonesian is not used everywhere. In Bali, many parts of eastern Indonesia, and also in large areas of Sumatra and Kalimantan, people often speak a more formal variety of Indonesian in daily life.
Truly formal, bookish Indonesian does exist, but it is rarely used in everyday conversation. Even newspapers no longer follow strictly formal norms. In academic writing, for example, it is now common to use bisa instead of the more formal dapat. The language of most Indonesian mass media today is best described as a relaxed form of formal Indonesian.