1. Often, people will vehemently maintain their Beliefs even in light of disconfirming evidence

2. Antonyms for Confirmatory include confuting, disproving, refuting, rebutting, disaffirming, antithetical, controverting, disconfirming, disagreeing and defending

3. Antonyms for Corroborating include confuting, disproving, refuting, rebutting, disaffirming, antithetical, controverting, disconfirming, disagreeing and defending