rù​mù​sān​fēn

forceful

入木三分 rù​mù​sān​fēn
forceful idiom
written in a powerful or forceful hand, originally describing calligraphy that penetrates deep into the wood
penetrating idiom
displaying deep insight or profound observation in analysis or description

Frequency

Movie subtitles
0.060 per million appears in 0% of films
Written text
0.475 per million

Sources

Definitions
CC-CEDICT