PRONUNCIATION: pr-vûrs, pûrvûrs
ADJECTIVE: 1. Directed away from what is right or good; perverted. 2. Obstinately persisting in an error or fault; wrongly self-willed or stubborn. 3a. Marked by a disposition to oppose and contradict. b. Arising from such a disposition. 4. Cranky; peevish.
(From "The American Heritage Dictionary of the English Language, Fourth Edition.")