不行 (bù xíng) means “won't do; be out of the question; be no good; not work; not be capable”. It is an HSK 2 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
这样做不行必须改变。
Zhèyàng zuò bùxíng bìxū gǎibiàn.
This won't do, must change.
Updated: 2026-07-18