经久不衰

jīng jiǔ bù shuāi

enduring; never going out of fashion

Character by character

经jīng
through

久jiǔ
long time

不bù
not

衰shuāi
fade

这首老歌经久不衰，三十年后还有年轻人在KTV里点。

This old song has never faded: thirty years on, young people still choose it at karaoke.

Tone: positive (praise).

For songs, works, brands, customs and popularity: 经久不衰的魅力, 经久不衰的经典. Its opposite is 昙花一现 (4-1).

Learn this in Lesson 217 · HSK 9+: 台词里的中国 (Lines from the screen)

A dialogue, a reading, word cards with audio and a drill that uses it, in Learn Chinese with Bao. The first lessons of every level are free.