A lot of Korean learners think there’s a simple formula: add 니다 or 습니다 to the end of a sentence, and congratulations, you’re speaking politely. It’s a reasonable place to start — but as a native speaker, I can tell you it often doesn’t sound natural when I actually hear it. Korean honorifics are less about one grammar rule and more about a whole different way of shaping a sentence depending on who you’re talking to.
반말 vs. 존댓말: What’s the Actual Difference?
반말 (banmal) is casual speech — used with close friends, people younger than you, or people clearly below you in age/rank in a relaxed setting. 존댓말 (jondaemal) is polite/formal speech — used with strangers, elders, people senior to you at work, or anyone you don’t know well yet. The two aren’t just “add an ending or don’t” — verb endings, vocabulary, and even word choice shift between them.
Why “Just Add -nida” Isn’t Enough
Technically, slapping 습니다 onto a sentence does make it grammatically polite. The problem is that real conversation doesn’t move in neat, textbook sentences — there are softer polite endings (요), different ways to ask questions politely, and specific phrases that change based on the situation, not just the grammar level. A sentence can be “technically” correct and still sound stiff, oddly formal, or just slightly off to a Korean ear. The good news: Koreans will almost always understand you anyway and won’t judge you harshly for it — we’re used to hearing learners work through this.
The Fastest Way to Actually Learn This
Here’s my honest take, as someone who speaks this language natively: don’t try to learn 존댓말/반말 by memorizing the grammar chart first. Learn full sentences for specific situations — ordering food, greeting a coworker, texting a close friend — and repeat them until they feel automatic. Grammar rules explain the system after the fact; they don’t actually teach you to speak naturally in real time. Pattern recognition from real sentences will get you there faster than conjugation tables will.
Quick Situational Guide
- Talking to a store clerk, taxi driver, or stranger: 존댓말, always.
- Talking to a close friend your own age: 반말, once you’ve both agreed to drop formality (switching to 반말 uninvited can come across as rude).
- Talking to someone older or more senior, even if you’re friendly: 존댓말, until they explicitly tell you it’s okay to speak casually.
- Texting: often a looser, in-between style — more on that in a separate post on how Koreans actually text.
My Honest Advice
Don’t stress about getting 존댓말/반말 perfect before you start speaking. Koreans are genuinely forgiving about this with learners, and the “mistake” of being slightly too formal is always safer than the mistake of being too casual with the wrong person. Start with 존댓말 as your default with anyone new, and let native speakers invite you into 반말 when the relationship is ready for it.
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