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

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

3. Controvert (third-person singular simple present Controverts, present participle Controverting, simple past and past participle Controverted) To dispute, to argue about (something)

4. Controvert (third-person singular simple present controverts, present participle controverting, simple past and past participle Controverted) To dispute, to argue about (something)

5. controvert (third-person singular simple present Controverts, present participle controverting, simple past and past participle controverted) (transitive) To dispute, to argue about (something)

6. 1600, "dispute (something), oppose by argument" (a sense now obsolete); 1610s, "to make the subject of verbal contention, debate, discuss; contend against (someone) in argument," probably a back-formation from controversy.Related: Controverted; Controverting; Controvertible.

7. 1600, "dispute (something), oppose by argument" (a sense now obsolete); 1610s, "to make the subject of verbal contention, debate, discuss; contend against (someone) in argument," probably a back-formation from controversy.Related: Controverted; controverting; controvertible.