Perverse

per·verse  (pr-vûrs, pûrvûrs)

adj.

1. Directed away from what is right or good; perverted.

2. Obstinately persisting in an error or fault; wrongly self-willed or stubborn.

3.

a. Marked by a disposition to oppose and contradict.

b. Arising from such a disposition.

4. Cranky; peevish.