无动于衷 wú dòng yú zhōng

DEFINITIONS

  1. aloof
  2. indifferent
  3. unconcerned

CHARACTERS

无 wú negative, no, not; KangXi radical 71
动 dòng move, happen; movement, action
于 yú in, on, at; go to; surname
衷 zhōng heart, from bottom of one's heart