bù​zài​háng

not to know one's stuff

Senses

不在行 bù​zài​háng (also bú​zài​háng) not to know one's stuff

To be unfamiliar with a certain field, profession, or subject; lacking in experience or skill in a particular area.

References

synonym 不在行/不在行 外行/外行
same_as 外行/外行 不在行/不在行