不經不覺 [－经－觉]

Jyutping bat1 ging1 bat1 gok3
Pinyin bù jīng bù jué

Definitions (CC-CANTO)
  1. without noticing
Definitions (粵典–words.hk)
  1. 語句
    一路​發生​緊都察覺​唔​到​（​多數​係​時間​流逝​）
    unaware of something happening (esp. the passage of time)
    • 不經不覺就已經讀咗六年中學，時間真係過得快。
      不经不觉就已经读咗六年中学，时间真系过得快。
      I've already been in secondary school for six years. Time really does fly.
Definitions (Wiktionary)
  1. phrase, Cantonese, idiomatic
    unconsciously
    (syn.) 唔经唔觉, 不知不覺, 唔經唔覺, 不知不觉
Examples (粵典–words.hk)
  1. Cantonese
    不经不觉就已经读咗六年中学，时间真系过得快。
    不經不覺就已經讀咗六年中學，時間真係過得快。
    • I've already been in secondary school for six years. Time really does fly.