一意孤行

一意孤行 [yī yì gū xíng]

1. ■ persist in wilfully and arbitrarily; act arbitrarily; act in disregard of other people's opinions; act wilfully; be bent on having one's own way; be dead set on having one's own way; be hell-bent on having one's own way; cling obstinately to one's course; disregarding other people's opinions; do only what one wishes; follow one's own bigoted course; have [take; get; go] one's own way; persist in having everything one's own way; persist in [cling to] one's course; ride roughshod over; self-opinionated; selfwilled; wilfully cling to one's obdurate course