1. What does it mean?
비추 is a short form of 비추천. It expresses that the speaker would not recommend a product, activity, plan, or other option, often as a brief response or review.
Also written or said as 비추천, 비추하다
2. The nuance
A reason or condition matters: 비추 for someone with little time is not the same as saying an option is bad for everyone. Used without explanation, it may sound dismissive. It is less formal than recommending a specific alternative.
3. Examples
“시간이 한 시간뿐이면 그 먼 전시회는 비추야.”
If you only have an hour, I wouldn't recommend that exhibition so far away.
“처음 가는 산을 밤에 혼자 오르는 건 비추해.”
I wouldn't recommend climbing an unfamiliar mountain alone at night.
Sources
KoreanClass101: Korean language lessons
References support the meaning and usage. Example sentences are written for NoCapWiki.