sin1 jap6 wai4 zyu2先入為主先入为主

Jyutpingsin1 jap6 wai4 zyu2

Yalesīn yahp wàih jyú

動詞

Definition

To judge based solely on first impressions; to be biased or prejudiced from the start.

colloquialpeopledescriptions

How it's used

Often used to critique someone for letting their initial reaction cloud their judgment before hearing the full story. It carries a slightly formal tone despite being used in daily conversation, as it is a four-character idiom. It is frequently paired with verbs like 覺得 or 認為 to describe the act of holding a biased opinion.

Examples

nei5你m4唔hou2好sin1先jap6入wai4為zyu2主，teng1聽jyun4完keoi5佢gaai2解sik1釋sin1先laa1啦。

Don't be so quick to judge, listen to his explanation first.

keoi5佢deoi3對ni1呢go3個jan4人jau5有sin1先jap6入wai4為zyu2主ge3嘅gun1觀nim6念，hou2好naan4難goi2改。

He has a preconceived notion about this person that is hard to change.

Common phrases

m4唔hou2好sin1先jap6入wai4為zyu2主

don't be prejudiced

sin1先jap6入wai4為zyu2主ge3嘅gun1觀nim6念

preconceived notion

Common mistake

Learners often mistake this for a simple adjective, but it functions more like a verb phrase describing an action or a state of mind. Avoid using it to mean simply 'having a first impression', as it specifically carries the negative connotation of being biased or unfair.