From basics to advanced idioms, Chinese study culminates with phrases like 「一成不變」. Explore their meaning and use in this free guide.
This time, we’re looking at the idiom 「一成不變」. Its meaning and application are provided below.
Cheng: formulate, form. Once formed, it cannot be changed.
The Mandarin pronunciation of this idiom is :
yī chéng bù biàn
while its Cantonese pinyin is :
yat1 sing4 bat1 bin3
The world of Chinese idioms is immense, with countless meanings and applications to discover. We hope these resources help you unlock the beauty of learning Chinese.

