不明觉厉bù míng jué lì

No idea, but impressive

bù míng jué lì.不明觉厉。No idea, but wow.

灯灯, the Dengdeng mascot, clapping slowly in front of a table of bubbling glass flasks and coiled wires, its head tilted

is short for ,: “I don’t understand it, but it sounds impressive.” You say it when someone talks over your head.

Took off
2013
Started in
Online forums
Today
A classic

What it means

comes from , “do not understand”, and from , “feel that it is impressive”. The four characters look like a , a classical four-character idiom, but they are only a cut-down sentence.

It can be real praise for an expert. It can also be a polite way to say that an explanation lost you.

How people use it

It is a little dated, but most people still know it. Use it in chat when a friend explains code, physics or a recipe with twenty steps. Said about someone’s work to their face, it can sound like teasing.

里昂
  1. wǒ yòng sān háng dài mǎ zuò le yí gè xiǎo yóu xì

    I made a little game with three lines of code.
  2. ??

    shá? sān háng jiù gòu le?

    What? Three lines is enough?
  3. ,

    duì, yòng le yí gè xīn de kù

    Yep. I used a new library.
  4. bù míng jué lì

    No idea how, but that’s impressive.

More examples

  • ,。

    nǐ xiě de zhè xiē dài mǎ wǒ yí jù yě méi kàn dǒng, bù míng jué lì.

    I didn’t understand a line of that code. Sounds impressive, though.

  • ,。

    tā zài jiǎng liàng zǐ wù lǐ, dà jiā dōu bù míng jué lì.

    He was talking about quantum physics. Nobody followed, but we were all impressed.

Where it came from

No source we found names the first post. By July 2013, Chinese newspapers were writing about and other “new idioms” made the same way, such as , “very moved, then said no”.

In October 2013, China Daily’s language site put it first on a list of popular online words of the year.

Sources

Checked November 2026. The picture at the top is our own drawing of 灯灯. It is not the original meme image.

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The Dengdeng app icon

Level up your Chinese.

Start with today’s story. Free on iOS and Android.

Download on the App StoreGet it on Google Play