Collins Chinese Dictionary Plus (3rd edition), 2011:
外行 wàiháng
I 名
layman;
(pl laymen)
(pl laymen)
- 对(對)电(電)脑(腦)编(編)程,我是个(個)外行。 Duì diànnǎo biānchéng,wǒ shì gè wàiháng. I'm a layman where computer programming is concerned.
II 形
amateurish