Example sentences:

Ramayana: When Shurapanakha portrayed herself as the victim instead of the aggressor in her meeting with Rama, her account was not just contentious; it was fictitious.  

Mahabharata:  Although Duryodhana’s account of his dealings with the Pandavas was contentious to the extreme, his conscience was so deadened that he genuinely believed he had done no wrong.

Bhagavad-gita:  Reducing consciousness to a mere biochemical phenomena is contentious, as seen by the many critics of such reductionism, who include in their ranks spiritualists and non-spiritualists.