不bat1知zi1不bat1覺gok3

English

1. (idiom) unconsciously; unwittingly
2. unconsciously; unaware; unnoticeably; something happened when you're unaware and you didn't notice it.

粵語 — Cantonese

1. 喺你唔為意、唔經意嘅時候，一啲嘢發生咗，而你冇留意亦冇發覺到

Examples

• 時間過得真係快，一個學期不知不覺又過咗去。

  Time passes really quickly. The school term was up before we knew it.

• 天不知不覺地暗了下來。

  It became dark before I knew it.

  Tatoeba · nickyeow CC BY

• 我们照例寒暄了一阵，闲扯扯队里的新闻以后，他在不知不觉中就把谈话引入了正题。

  We exchanged pleasantries, and chatted cordially about news in the team, and he moved the conversation naturally on to the main topic.

  Tatoeba · GlossaMatik CC BY