orneriness

The mule's orneriness is legendary among the farmhands.

そのラバの頑固さは農場の作業員の間で伝説になっている。

That ornery cat scratches anyone who tries to pet it.

あの気難しい猫は、なでようとする人を誰でも引っ掻く。

His orneriness made him difficult to work with, but he was good at his job.

彼の強情さは一緒に働きにくくしたが、仕事は上手だった。

My grandfather can be ornery in the morning before he's had his coffee.

祖父はコーヒーを飲む前の朝は機嫌が悪くなることがある。