彼は片意地を張って、誰の忠告も聞こうとしなかった。
He dug in his heels and refused to listen to anyone's advice.
祖父は片意地な人で、一度決めたことは決して変えない。
My grandfather is an obstinate man who never changes his mind once he has decided something.
そんなに片意地にならずに、少しは人の意見も聞きなさい。
Don't be so stubborn; listen to what other people have to say for once.
片意地を通した結果、彼は仲間から孤立してしまった。
As a result of stubbornly insisting on his own way, he ended up isolated from his colleagues.