gè​xíng​qí​shì

act independently

各行其是 gè​xíng​qí​shì
act independently idiom
each person acts according to their own judgment or goes their own way, often regardless of a unified plan or the opinions of others

Frequency

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

Sources

Definitions
CC-CEDICT