ETYM Latin perversus turned the wrong way, not right, p. p. of pervertereto turn around, to overturn: cf. French pervers. Related to Pervert.
Marked by a disposition to oppose and contradict.
1. Deliberately deviant.
2. In a contrary disobedient manner; SYN. contrarily, contrariwise.
In a distorted manner; erroneously, in a falsified manner