noun. The state or character of being perverse; disposition to be contrary, or to thwart or cross; corruption; wickedness.

noun. The quality or state of being perverse.

noun. The quality of being perverse; obstinacy or doggedness

noun. deliberately deviating from what is good

noun. deliberate and stubborn unruliness and resistance to guidance or discipline

"It follows, that the desire to be well must be excited simultaneously with any principle which shall be merely a modification of combativeness, but in the case of that something which I term perverseness, the desire to be well is not only aroused, but a strongly antagonistical sentiment exists."

evil  evilness  

aggressiveness  baseness  contumacy  cupidity  fatuity