陰魂不散

1. • lit. the soul of a deceased has not yet dispersed (idiom)
2. • fig. the influence still lingers on
3. • the spirit (of some doctrine) is still alive

Character by character

• 陰(yīn)surname Yin
• 魂(hún)soul
• 不(bù)no
• 散(sàn)scatter