How to Say I Don't Understand in Chinese: 听不懂, 不明白, and 请再说一遍

By Ray Banks·October 7, 2026·Phrases

"I don't understand" in Chinese is 听不懂 (聽不懂), pronounced tīng bu dǒng. It means, precisely, "I listened but couldn't understand," and it is the phrase to use when someone speaks to you and the words don't land. Chinese splits "understand" by channel: 听不懂 for what you hear, 看不懂 kàn bu dǒng for what you read, and 不明白 bù míngbai for an idea that doesn't make sense even though you caught every word. Pick the right one and the other person knows exactly how to help you: repeat it, write it down, or explain it differently.

听不懂, 不明白, or 看不懂? Which "don't understand" you need

English uses one verb for all three, so learners tend to grab whichever Chinese phrase they met first and use it everywhere. Native speakers hear a real difference. 听不懂 says the problem is in your ears: the sounds didn't resolve into words. 不明白 says the problem is in your head: you got the words, but not the point. 看不懂 says the problem is on the page.

This matters because the phrase you choose tells the other person what to do next. Say 听不懂 and they will repeat, slower and often louder. Say 不明白 and they will rephrase, add an example, or draw a diagram. If you say 不明白 when you actually missed the words, you get a patient re-explanation of something you never heard in the first place.

A quick test: could you write down what the person said, even if it means nothing to you? Then it's 不明白. If you couldn't even transcribe it, it's 听不懂. Most beginner moments are 听不懂. By the intermediate stage, more and more of them turn into 不明白, which is a sign of progress.

What do the characters in 听不懂 mean?

听不懂 is not a fixed idiom you have to memorise whole. It is a grammar pattern, and once you see it you'll find it in dozens of other verbs.

The shape is verb + 不 + result, a potential complement meaning "do the verb, but fail to reach the result." 听 is the action, 懂 is the result you were aiming for, and 不 in the middle says you didn't get there. The positive form swaps 不 for 得: 听得懂 tīng de dǒng, "I can understand it when I hear it." Ask someone 你听得懂吗? and the answer will be 听得懂 or 听不懂, never 是 or 不是. (If yes/no questions in Chinese still trip you up, how to say yes and no in Chinese untangles that.)

The same slot takes other results, and this is where learners get real mileage. 听不清 tīng bu qīng means "I can't hear it clearly" (bad line, noisy room). 听不见 tīng bu jiàn means "I can't hear it at all." 看不懂 is the reading version, 看不清 is "can't see it clearly." Once the pattern is yours, "I don't understand" stops being a phrase and becomes a small machine you can point at any verb. The Chinese grammar guide covers potential complements as their own topic.

不明白 is built differently. 明 is 日 (sun) beside 月 (moon), meaning bright. 白 is white, and by extension clear or plain, the same 白 as in 白话 (plain speech). 明白 is "bright and clear," so 不明白 is "it isn't clear to me." That is why it points at the idea rather than at your ears.

One pronunciation note: the 听 in 听不懂 is a full first tone, but the 不 between verb and complement goes neutral. Say tīng-bu-dǒng with the weight on the first and last syllables, not tīng bù dǒng with three separate punches. The pinyin guide explains neutral tone and where it shows up.

How do you ask someone to repeat or slow down?

Saying 听不懂 on its own leaves the other person guessing what would help. The useful move is to follow it immediately with a request. These are the ones that get results.

A sequence that works in practice: 不好意思，我听不懂，可以说慢一点吗? ("Sorry, I don't understand, could you speak slower?") Three short pieces, each one a phrase you already have. It signals that you are trying, and it turns a dead end into a slower second attempt. If you're travelling rather than studying, the survival Chinese guide puts this alongside the other sentences you'll need on day one.

How do you say "my Chinese isn't good" without ending the conversation?

Sometimes 听不懂 isn't enough context. The other person needs to know whether to switch to English, simplify, or just be patient. These sentences set expectations without apologising for existing.

How do you say "I understand" once it clicks?

Closing the loop matters. If you never signal that you got it, the other person keeps simplifying, and the conversation stays at the level of the confusion instead of moving on.

Do Mainland China and Taiwan say "I don't understand" differently?

The core phrases are identical. 听不懂, 不明白, 看不懂, and 再说一遍 are used the same way in Shanghai and Kaohsiung. The script differs (聽不懂, 請再說一遍, 什麼意思 in Traditional), and so does the texture around the phrases.

• The casual "huh?" On the Mainland it's 啊? á with a rising tone, or in the north 啥? shá, a dialect word for 什么. In Taiwan it is 蛤? há, so common it's practically a national tic. Taiwanese media has run stories on how 蛤 startles Japanese and Western visitors, who hear aggression in it. Among Taiwanese it's neutral; outside Taiwan it lands badly, so learn to recognise it rather than to say it.
• 慢点儿 vs 慢一點. Northern Mainland speech clips 一点 to 点儿 with the -r ending; Taiwan and southern Mainland say the full 一点. Both are correct; the app swaps this sort of thing based on your region setting, the same way it swaps 地铁 for 捷运.
• Naming the language. 我的中文不好 works everywhere. 普通话 is Mainland-specific and 國語 is Taiwan-specific; using the wrong one is harmless but marks where you studied.
• Switching to English. In Taipei, shop staff often switch to English the moment they hear 听不懂. On the Mainland outside the big cities the more common response is to repeat, slower and louder, or to reach for a phone translator. Neither is better; just expect it.

Which phrase should I use? A comparison table

Mistakes to avoid

These are the errors I hear most, including from learners well past the beginner stage.

• Saying 不明白 when you mean 听不懂. You missed the words, but 不明白 tells the listener you missed the logic. They re-explain the reasoning, slowly, while you still don't have the sentence. If you couldn't have written down what they said, it's 听不懂.
• Saying 我不知道 for "I don't understand." 不知道 means "I don't have that information." Someone asks where the station is and you say 不知道: they walk off, because you've answered. Say 听不懂 and they'll try again.
• Mixing up 听不懂, 听不清, and 听不见. 听不见 is "I can't hear anything," 听不清 is "I can't make it out," 听不懂 is "I hear it but can't understand it." On a bad phone line, say 听不清, not 听不懂, or the other person will start simplifying their vocabulary when the problem is the signal.
• Answering 你听得懂吗 with 是 or 不是. Chinese answers a verb question with the verb: 听得懂 / 听不懂. 是 sounds like a translation, because it is one.
• Punching the 不. 听不懂 is tīng-bu-dǒng, with a neutral middle syllable. Giving 不 a full fourth tone makes the phrase sound like three separate words and is one of the clearest markers of a learner reading pinyin rather than repeating speech. (The Chinese tones guide covers this and the 一 sandhi in 一遍.)
• Nodding through it. Not a phrase error, but the most expensive habit of all. 嗯嗯 and a nod when you haven't understood buys you ten seconds and costs you the conversation. 听不懂 plus a request is always cheaper.

Is it embarrassing to say 听不懂?

Less than you'd think, and for a reason that has nothing to do with foreigners. Chinese speakers say 听不懂 to each other constantly. A Beijinger in Guangzhou 听不懂 Cantonese; a Taipei office worker 听不懂 her grandmother's Taiwanese Hokkien; a Shanghainese grandfather 听不懂 the Sichuan accent on a TV drama. The phrase belongs to ordinary life in a country with hundreds of mutually unintelligible varieties, and it carries none of the shame an English speaker projects onto "I don't understand."

What does cost face is the fake-understanding move: the nod, the 嗯, the agreeing to something you didn't catch. That produces the awkward moment five minutes later when the plan falls apart and everyone realises you never followed. The person who says 不好意思，我听不懂，可以再说一次吗 comes across as someone who takes the conversation seriously. In Taiwan especially, that sentence tends to trigger warmth and a genuinely slower second attempt. On the Mainland the reaction is more matter-of-fact, but it's rarely negative. Nobody expects you to have grown up with the language. They do notice whether you're honest about where you are.

There is also an old idiom for the other side of this transaction: 对牛弹琴 duì niú tán qín, "playing the zither to a cow," said of someone who explains fine things to an audience that cannot possibly follow. If a friend uses it about you, they're teasing. If you can use it about yourself, you've clearly moved past 听不懂.

See these phrases in real stories

The best way to make 听不懂 feel natural is to meet it where a native reader would, inside a sentence with real stakes. Two free browser stories put the phrases from this post to work, with tap-to-look-up on every word:

• Playing the Qin to a Cow tells the 对牛弹琴 story and then applies it: 小王喜欢讲很难的数学问题，可是他跟小李说这些，小李根本听不懂. That 根本 ("simply, at all") is how you intensify 听不懂 when nothing whatsoever got through.
• Lil Jon at the Airport has our beginner hero fail to follow a question at the counter: 小约翰因为不明白问题回答："什么？" That is 不明白 in its natural habitat, followed by the one-word 什么? that every learner has produced at an airport.

Both are short, graded, and recorded in Mainland and Taiwan Mandarin. More at the same level in our Chinese reading practice library.

How common are these characters, really?

Measured across the 658 graded stories in the Literate Chinese catalog (141,730 hanzi occurrences, July 2026), 不 is the 8th most frequent character in the whole corpus, 听 is 116th, and the two halves of 明白 sit at 76th (明) and 113th (白). 说 ("to say," as in 再说一遍) is 7th. In other words, the vocabulary of not understanding is built almost entirely from characters that appear in the first couple of hundred you'll learn. Learn the phrases early and the characters come along for free, and you'll recognise them on every page after that.