浑然不觉

渾然不覺
húnránbùjué
totally unaware

CEDICT

完全没有感觉。

重編國語辭典

Entry Composition

1 浑然 húnrán
  1. completely
  2. absolutely
  3. undivided
  4. totally mixed up
  5. muddled
2 不觉 bùjué unconsciously