倔

这孩子脾气有点儿倔，你跟他说话得讲道理，不能硬来。

This child is a little stubborn, so you need to reason with them rather than trying to force them.

别看他平时不爱说话，脾气一上来了，谁劝都不听，真倔。

He may not talk much normally, but once he gets stubborn, no one can persuade him. He really is stubborn.