4 adjectives to describe contrariness

Now this could be nothing but sheer contrariness on Geissler's part; he could surely see for himself that rich and portly gentlemen of their stamp would not be acting as agents.

Just as if girls went into hard and trying occupations from mere contrariness!

With the morbid contrariness of the human imagination, the boy's avid grasping gave him no comfort.

I never for an instant looked upon them as anything but a little bit of playful contrariness.

4 adjectives to describe  contrariness