Stubbornness; being obstinate or headstrong — refusing to change one's opinion or behavior.
あの子は強情を張って、大人の言うことを聞かない。
That child is stubborn and won't listen to what adults say.
彼は強情で謝ることができないタイプだ。
He's the type of person who's too stubborn to apologize.
強情を張らずにもう一度話し合おう。
Let's talk again without being so stubborn.