perverse

Short definition from Wiktionary

Adjective

1. 1
   Turned aside while against something, splitting off from a thing.
2. 2
   Morally wrong or evil; wicked; perverted.
3. 3
   Obstinately in the wrong; stubborn; intractable.
4. 4
   Wayward; vexing; contrary.
5. 5
   Ignoring the evidence or the judge's opinions.

Noun

1. 1
   A chiral opposite of something; a mirror image with opposite handedness.

Verb

1. 1
   To pervert.