无动于衷

无动于衷 [wú dòng yú zhōng]

1. ■ be completely indifferent; aloof and indifferent; be dead [lost] to all feelings; be hardened to; be not impressed; call forth no response in one's breast; not touched; remain completely unmoved; remain indifferent; showing no sympathy [emotion]; unconcerned; unmoved; untouched; with nonchalance; without compunction