心不在焉 xīn bù zài yān

DEFINITIONS

  1. absent-minded
  2. preoccupied
  3. inattentive
  4. with one's thoughts wandering

CHARACTERS

心 xīn heart; mind, intelligence; soul
不 bù no, not; un-; negative prefix
在 zài be at, in, on; consist in, rest
焉 yān thereupon, then; how? why? where?