zì​xíng​qí​shì

to go one's own way

自行其是 zì​xíng​qí​shì
to go one's own way
To act as one thinks fit without considering the opinions of others; often carries a negative tone suggesting stubbornness or disregard for advice.

Frequency

Movie subtitles
0.180 per million appears in 0% of films
Written text
0.160 per million

Sources